COVID-19 vaccination in pregnancy

How is Covid-19 affecting vaccinated and non vaccinated pregnant women?

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Information sheet and decision aid

This decision aid is 6 pages, please click below on the image to open the document. 

Royal College of Obstetrics and Gynaecology 

Key messages
  • COVID-19 vaccines are strongly recommended in pregnancy. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission of the woman to intensive care and premature birth of the baby.
  • In the UK, all adults including pregnant women are urged to book a COVID-19 booster vaccine (third dose) three months after their second dose.
  • With the new variant (Omicron) in circulation, we strongly encourage pregnant women to have their first and second doses of the COVID-19 vaccine if they have not already done so, to protect themselves and their baby.
  • Women may wish to discuss the benefits and risks of having the vaccine with their healthcare professional and reach a joint decision based on individual circumstances.
  • You should not stop breastfeeding in order to be vaccinated against COVID-19.
  • Women trying to become pregnant do not need to avoid pregnancy after vaccination and there is no evidence to suggest that COVID-19 vaccines will affect fertility.
  • Having a COVID-19 vaccine will not remove the requirement for employers to carry out a risk assessment for pregnant employees, which should follow the rules set out in this government guidance.
  • See our media statements on COVID-19 vaccination and pregnancy
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Resources to help with decision making
Vaccination is recommended in pregnancy, but the decision whether to have the vaccine is your choice. You may find the following resources helpful:
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Commonly Asked Questions

What is the latest advice on COVID-19 vaccination and pregnancy?

COVID-19 vaccines are recommended in pregnancy. All pregnant women and girls in the UK aged 16 and over have now been offered a COVID-19 vaccine.

On 16 April 2021, the Joint Committee on Vaccination and Immunisation advised that all pregnant women should be offered the COVID-19 vaccine at the same time as the rest of the population, in line with the age group roll out.

Previously their advice was that pregnant women at high risk of exposure to the virus or with high risk medical conditions should consider having a COVID-19 vaccine in pregnancy.

Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

The decision whether to have the vaccination in pregnancy is your choice. Make sure you understand as much as you can about COVID-19 and about the vaccine and you may want to discuss your options with a trusted source like your doctor or midwife.

Are pregnant women being given booster vaccines?

Yes. On 12 December 2021, the government announced that all adults in the UK, including pregnant women, should book a COVID-19 booster vaccine (third dose) by the end of the year. Booster vaccines can be given 3 months (91 days) after your 2nd dose.

We strongly encourage all pregnant women to have the COVID-19 booster vaccination as it provides the best protection against the virus for you and your baby.

Booster vaccines were initially offered to pregnant women who were frontline health and social care workers, in a clinical risk group or over the age of 40. The JCVI announced on 29th November 2021 that as well as those already eligible for the booster vaccination, people aged 18 to 39 years (including pregnant women) would eligible to have a booster vaccination in order of descending age groups, with priority given to high-risk woman.

Those high-risk pregnant woman with underlying medical conditions causing immunosuppression will be eligible to have a fourth vaccine dose after the initial COVID-19 booster (third dose). For those pregnant woman with an underlying medical condition causing immunosuppression who have not yet received your initial booster (third dose), it is recommended to get your booster as soon as possible if your second COVID-19 vaccine was more than 3 months ago.

What is the advice on going to work if I am pregnant and have been vaccinated?

According to the government’s advice for pregnant employees, employers must carry out a risk assessment for pregnant employees taking into consideration the RCOG/RCM Guidance on COVID-19 in pregnancy. Employers are still required to carry out a risk assessment whether an employee has been vaccinated or not.

Are vaccines normally used in pregnancy?

Pregnant women and women who are breastfeeding are already routinely and safely offered vaccines in pregnancy, for example to protect against influenza (flu) and whooping cough. Many of these vaccines also protect their babies from infection. These vaccines, like the COVID-19 vaccines, are non-‘live’ vaccines, which are generally considered safe in pregnancy.

Is COVID-19 vaccination safe and effective for pregnant women and their babies?

Robust real-world data from the United States – where over 177,000 pregnant women have been vaccinated mainly with mRNA vaccines, such as Pfizer-BioNTech and Moderna – have not raised any safety concerns.

Therefore, the Joint Committee on Vaccination and Immunisation (JCVI) advises that it is preferable for the Pfizer-BioNTech or Moderna mRNA vaccines to be offered to pregnant women in the UK, where available.

The UK Health Security Agency (UKHSA) (formally Public Health England) have reported that more than 84,000 pregnant women in England have received at least one dose of COVID-19 vaccination. Public Health Scotland have reported that more than 19,000 pregnant women have received a vaccine, with no serious adverse effects recorded. New safety data published on 25 November 2021 by the UKHSA showed that in August 2021, 22% of women who gave birth were vaccinated.

The initial clinical trials which showed that COVID-19 vaccines are safe and effective did not include pregnant women. As the COVID-19 vaccines were not tested in pregnant women, we cannot say for sure that they work as well in pregnant women as they do in other adults. However, more recent studies showed that pregnant women who had the vaccine made antibodies against COVID-19, suggesting that the vaccine is effective in pregnancy. Recent studies also showed that pregnant and non-pregnant women had similar mild side-effects from vaccination.

COVID-19 vaccines do not contain ingredients that are known to be harmful to pregnant women or to a developing baby. Studies of the vaccines in animals to look at the effects on pregnancy have shown no evidence that the vaccine causes harm to the pregnancy or to fertility.

The COVID-19 vaccines that we are using in the UK are not ‘live’ vaccines and so cannot cause COVID-19 infection in you or your baby. Vaccines based on live viruses are avoided in pregnancy in case they infect the developing baby and cause harm. However, non-live vaccines have previously been shown to be safe in pregnancy (for example, flu and whooping cough). Pregnant women are offered other non-live vaccines, such as those against flu.

Studies have shown that protective antibodies from vaccination do cross the placenta, helping with the baby’s immunity to COVID-19. We know that catching COVID-19 during pregnancy can cause severe illness in a pregnant woman which is why COVID-19 vaccine in pregnancy is so strongly recommended.

What is known about the impact of COVID-19 vaccination on babies born to women who have been vaccinated in pregnancy?

As these are new vaccines, there are no studies yet on the long-term effects on babies born to women who had a COVID-19 vaccine in pregnancy. But as COVID-19 vaccines are not ‘live’ vaccines they cannot cause infection, and other non-live vaccines have been given to women in pregnancy for many years without any safety concerns.

The mRNA vaccines (Pfizer and Moderna) are also quickly broken down once they have been injected – within a few days of vaccination there will be no vaccine mRNA left.

Studies have shown that protective antibodies developed from vaccination can transfer from mother to baby across the placenta, and after birth through breast milk, helping with the baby’s immunity to COVID-19. The degree of protection this provides to the baby is unknown at present and more research is needed.

The data available shows that if a pregnant woman has the COVID-19 vaccine she is not at an increased risk of having adverse pregnancy outcomes. Research from 13 studies in five countries, involving more than 100,000 people vaccinated in pregnancy, shows having the vaccine does not increase the risk of miscarriage, preterm birth or stillbirth. Nor does it increase the risk of a small-for-gestational age baby, or the risk of congenital anomalies.

One of these studies was from St George’s, University of London and published in the American Journal of Obstetrics and Gynecology (AJOG) on 9 August 2021. The research compared pregnancy outcomes for women who had received the COVID-19 vaccine and those who had not. They found there were no significant differences between the two groups, with no increase in stillbirths or premature births, no anomalies with development and no evidence of babies being smaller or bigger.

More research is being done, monitoring both the mother and baby’s health during pregnancy and for a year after the baby’s birth. We know that the vaccine is safe in pregnancy, but this is the next step in looking at the level of protection that the vaccine provides, what the best interval between doses is, and monitoring the immune response of both the mother and baby after the vaccine.

Is there any evidence that COVID-19 vaccines cause miscarriage or stillbirth?

The Medicines and Healthcare products Regulatory Agency’s (MHRA) Yellow Card scheme – the UK system for collecting and monitoring information on safety concerns, such as suspected side effects or adverse incidents involving medicines and medical devices, including vaccines – has been analysing reports of miscarriage and stillbirth in pregnant women who have received the COVID-19 vaccines. The MHRA says there is no pattern to suggest any of the COVID-19 vaccines used in the UK, or any reactions to these vaccines, increase the risk of miscarriage or stillbirth.

Sadly, miscarriage is estimated to occur in about 20 to 25 in 100 pregnancies in the UK and most occur in the first 12 to 13 weeks of pregnancy (the first trimester). Stillbirths are estimated to occur in about 1 in 200 pregnancies in the UK.

We also have research from six studies worldwide which show the rates of miscarriage were the same in those who had received a COVID-19 vaccine during pregnancy as in the general population.

Should I have a COVID-19 vaccine if I plan to become pregnant?

Yes, this is strongly recommended. Getting vaccinated before pregnancy will help prevent COVID-19 infection and its serious consequences.

Women who are trying to become pregnant do not need to avoid pregnancy after vaccination.

I am currently trying to get pregnant. I have had the first dose of COVID-19 vaccine, should I delay pregnancy until after the second dose?

One dose of COVID-19 vaccination gives you good protection against infection, but it is thought that this is not long-lasting​ and may not protect you for the whole of pregnancy.

COVID-19 vaccines are strongly recommended to pregnant women. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

Women who are trying to become pregnant do not need to avoid pregnancy until after their second dose of the COVID-19 vaccine.

If you find out you are pregnant after you have had one dose of the vaccine (between doses), you are strongly advised to have your second dose 8 weeks after your first dose. The vaccine is considered safe and effective at any stage of pregnancy and there’s no evidence that you need to delay vaccination until after the first 12 weeks.

We recommend that you complete the course of vaccination before giving birth, or before you enter the third trimester, when the risk of serious illness from COVID-19 is greatest.

Your decision should take into account your personal exposures to and risks from COVID-19. You can discuss these risks with a doctor or your midwife, and you may want to use the RCOG and RCM decision tool to assist you in deciding what to do next.

When in pregnancy can I have the vaccine?

The vaccine is considered to be very safe and effective at any stage of pregnancy. There’s no evidence that you need to delay vaccination until after the first 12 weeks.

One dose of COVID-19 vaccination gives you good protection against the original infection, but with the Delta variant of the virus, two doses are needed to give a good level of immunity. Second doses are given 8 weeks after the first dose. A booster (third dose) is recommended to provide the best protection against the most recent (Omicron) variant.

Can I have the vaccine during IVF treatment?

Yes, you can have the COVID vaccine during IVF treatment. The British Fertility Society recommends considering the timing of your vaccine, taking into account that some people may experience minor side effects in the few days after vaccination that you do not want to have during treatment. It may be sensible to separate the date of vaccination by a few days from some treatment procedures (for example egg collection and embryo transfer in IVF) so that any symptoms, such as fever, might be attributed correctly to the vaccine or the treatment procedure. Your medical team will be able to advise you about the best time for your situation. If you have the vaccine at this time, you will help to protect yourself and your baby from the effects of COVID-19 infection in pregnancy.

Is the COVID-19 vaccine safe if I am undergoing immune suppressing therapy during IVF?

A minority of women are going through IVF receive immune suppressant therapy. None of the COVID-19 vaccines used in the UK are ‘live’ vaccines, and so cannot cause COVID-19 infection, even in women taking immune suppressing treatments. However, the vaccine may provide less protection as these treatments may reduce the level of anti-COVID antibodies produced by the body in response to the vaccine. It might be preferable, therefore, to delay having the vaccine until the effects of any immune therapy have worn off; or delay your IVF treatment until a few weeks after you’ve had your vaccine. You should discuss the pros and cons of these approaches with your fertility specialist.

Does the COVID-19 vaccine affect fertility?

There is no evidence to suggest that COVID-19 vaccines will affect fertility.
There is​ ​no biologically plausible mechanism by which current vaccines would cause any impact on women's fertility. Animal studies of the Pfizer and Moderna vaccines showed that administering these vaccines in rats had no effect on fertility. Evidence has not been presented that women who have been vaccinated have gone on to have fertility problems.

Likewise, the theory that immunity to the spike protein could lead to fertility problems is not supported by evidence. Most people who contract COVID-19 will develop antibodies to the spike and there is no evidence of fertility problems in people who have already had COVID-19.
As more evidence becomes available on the safety of each vaccine (from following up people for longer), we will update our advice.

More information on COVID-19 vaccines, fertility and fertility treatment is available from the British Fertility Society (BFS) and Association of Reproductive and Clinical Scientists (ARCS).

What if I find out I am pregnant after I have had the COVID-19 vaccine?

If you receive a dose of the vaccine before finding out you are pregnant, or unintentionally while you are pregnant, you should be reassured that the vaccine is safe and effective at any stage of pregnancy.

If you find out you are pregnant after you have had one dose of the vaccine (between doses), you are strongly advised to have your second dose 8 weeks after your first dose. There’s no evidence that you need to delay vaccination until after the first 12 weeks.

COVID-19 vaccines are strongly recommended in pregnancy. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

Second doses are given 8 weeks after the first dose and we recommend that you complete the course of vaccination before giving birth, or before you enter the third trimester, when the risk of serious illness from COVID-19 is greatest.

Your decision should take into account your personal exposures to and risks from COVID-19. You can discuss these risks with a doctor or your midwife, and you may want to use the RCOG and RCM decision tool to assist you in deciding what to do next.

Is there any evidence that COVID-19 vaccines cause miscarriage or stillbirth?

The Medicines and Healthcare products Regulatory Agency’s (MHRA) Yellow Card scheme – the UK system for collecting and monitoring information on safety concerns, such as suspected side effects or adverse incidents involving medicines and medical devices, including vaccines – has been analysing reports of miscarriage and stillbirth in pregnant women who have received the COVID-19 vaccines. The MHRA says there is no pattern to suggest any of the COVID-19 vaccines used in the UK, or any reactions to these vaccines, increase the risk of miscarriage or stillbirth.

Sadly, miscarriage is estimated to occur in about 20 to 25 in 100 pregnancies in the UK and most occur in the first 12 to 13 weeks of pregnancy (the first trimester). Stillbirths are estimated to occur in about 1 in 200 pregnancies in the UK.

We also have research from six studies worldwide which show the rates of miscarriage were the same in those who had received a COVID-19 vaccine during pregnancy as in the general population.

What are the adverse effects from COVID vaccines?

In non-pregnant individuals, the COVID vaccines are known to have mild and short-lasting side effects, such as a fever or muscle ache lasting a day or two. Reports of serious side effects, such as allergic reaction or clotting problems, have been very rare.

Regarding serious blood clots, the JCVI has stated that "there are currently no known risk factors for this extremely rare condition, which appears to be an idiosyncratic reaction on first exposure to the AstraZeneca COVID-19 vaccine". This means that someone is not necessarily at higher risk of this serious side effect just because they have a higher risk of other blood clots, for example because they are pregnant. Because this side effect is so rare, we can't know the exact risk in pregnancy.

This information on the AstraZeneca vaccine may be less relevant for pregnant women now that the JCVI recommends that the Pfizer-BioNTech or Moderna vaccines are offered in pregnancy, where available.

The government has also advised that individuals under the age of 40 should be offered an alternative vaccine to the AstraZeneca vaccine, based on the risk/benefit ratio for that age group.

What are the benefits of vaccination in pregnancy?

COVID-19 vaccines are recommended in pregnancy. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

More than half of women who test positive for COVID-19 in pregnancy have no symptoms at all but some pregnant women can get life-threatening illness from COVID-19, particularly if they have underlying health conditions. In the later stages of pregnancy, women are at increased risk of becoming seriously unwell with COVID-19.

COVID-19 infection can also affect the pregnancy. In pregnant women with symptoms of COVID-19, it is twice as likely that their baby will be born early, exposing the baby to the risk of prematurity. A recent study has also found that pregnant women who tested positive for COVID-19 at the time of birth were more likely to develop pre-eclampsia, more likely to need an emergency caesarean and their risk of stillbirth was twice as high, although the actual number of stillbirths remains low.

The benefits of vaccination include:

  • reduction in severe disease for the pregnant woman
  • reduction in the risk of stillbirth and prematurity for the baby

potentially reducing transmission to vulnerable household members.

When in pregnancy can I have the vaccine?

The vaccine is considered to be safe and effective at any stage of pregnancy. There’s no evidence that delaying until after the first 12 weeks is necessary.

One dose of COVID-19 vaccination gives you good protection against infection, but with the most recent (Delta) variant of the virus, two doses are needed to give a good level of immunity. Second doses are given 8 weeks after the first dose and we recommend that you receive two doses before giving birth, or before you enter the third trimester, when the risk of serious illness with COVID-19 is greatest.

How is COVID-19 vaccination being monitored in pregnancy?

Up to 31 March 2021, in the UK, healthcare professionals who met a woman who had been vaccinated in pregnancy recorded this via their UK Obstetric Surveillance Service (UKOSS) reporter for the joint UKOSS/UKTIS study. Pregnant women who had been vaccinated (up to and including 31 March 2021) could also report directly to UKTIS.

Pregnant women can register directly with the MHRA Yellow Card Vaccine Monitor.

Another reporting mechanism for healthcare professionals is the PHE Inadvertent Vaccination in Pregnancy (VIP) system.

As of April 2021, pregnancy status is recorded in the national vaccination programme to make sure pregnant women and their babies’ outcomes can be followed up.

Does it matter which vaccine I have?

The JCVI advises that it is preferable for all pregnant women in the UK to be offered the Pfizer-BioNTech or Moderna mRNA vaccines, where available. This is because these vaccines have been given to over 148,000 pregnant women in the US and the data have not raised any safety concerns. Women who have already had one dose of AstraZeneca (before they became pregnant or earlier on in pregnancy), are advised to complete vaccination with a second dose of AstraZeneca – see below for more information.

I have already had one dose of the AstraZeneca vaccine prior to or earlier in my pregnancy. I am now pregnant and due my second dose. What should I do?

The UKHSA published an update to the Green Book on Immunisation on 14 December 2021 which confirms that pregnant women who have already received a dose of AstraZeneca vaccine can have AstraZeneca for their second dose or one of the mRNA vaccines (Pfizer or Moderna). Evidence suggests that those who receive mixed schedules make a good immune response.

Pfizer and Moderna vaccines are the preferred vaccines for eligible pregnant women of any age, because of more extensive experience of their use in pregnancy. There are no reported concerns with the AstraZeneca vaccine in pregnancy, but there is less published data with this vaccine.

Completion of the primary course with a second dose of any available vaccine is strongly recommended to ensure maximum protection against COVID-19.

How is COVID-19 vaccination being monitored in pregnancy?

Up to 31 March 2021, in the UK, healthcare professionals who met a woman who had been vaccinated in pregnancy recorded this via their UK Obstetric Surveillance Service (UKOSS) reporter for the joint UKOSS/UKTIS study. Pregnant women who had been vaccinated (up to and including 31 March 2021) could also report directly to UKTIS via their telephone line 0344 892 0909 (open 9-5pm Mon-Fri).

Pregnant women can register directly with the MHRA Yellow Card Vaccine Monitor.

Another reporting mechanism for healthcare professionals is the PHE Inadvertent Vaccination in Pregnancy (VIP) system.

As of April 2021, pregnancy status is recorded in the national vaccination programme to make sure pregnant women and their babies’ outcomes can be followed up.

Are pregnant women being given booster vaccines?

All adults over the age of 18 are now being invited to have a COVID-19 booster vaccine. This will be delivered in age group order, the eldest and those who are at additional risk will be offered first.

  • frontline health and social care workers
  • all those aged 16 to 49 years with underlying health conditions that put them at higher risk of severe COVID-19 (as set out in the green book), and adult carers
  • adult household contacts of immunosuppressed individuals
  • all adults aged 50 years or over
  • those living in residential care homes for older adults


Why aren’t all pregnant women being given the booster vaccine?

Pregnant women are not currently being routinely offered the COVID-19 booster vaccine. This is because the majority of pregnant women will have received their second COVID-19 vaccine during the summer months and six months has not passed since they had it. The JCVI wishes to gather more information about when a booster dose might be needed for younger healthy people, including pregnant women.

The JCVI has said:

“As most younger adults will only have received their second COVID-19 vaccine dose in late summer or early autumn, the benefits of booster vaccination in this group will be considered at a later time when more information is available. In general, younger, healthy individuals may be expected to generate stronger vaccine-induced immune responses from primary course vaccination compared to older individuals. Pending further evidence otherwise, booster doses in this population may not be required in the near term.

JCVI will review data as they emerge and consider further advice at the appropriate time on booster vaccinations in younger adult age groups, children aged 12 to16 years with underlying health conditions, and women who are pregnant.”

We will continue to work with the JCVI and the Department of Health and Social Care to ensure they have the up-to-date research around COVID-19 in pregnancy..

Should I leave an interval in between having my COVID-19 vaccine or booster and other vaccines such as flu and whooping cough?

You can have the COVID-19 vaccine or booster at the same time as other vaccines such as the flu jab or the whooping cough vaccine. Sometimes it will not be possible to have the vaccines together for logistical reasons. If they aren’t given together then they can be administered at any interval, although separating the vaccines by a day or two will avoid confusion over any side-effects.

I had AstraZeneca for my first two vaccines, should I have AstraZeneca as my booster vaccine?

The JCVI is advising the Pfizer or Moderna vaccines are given for the booster dose, irrespective of the vaccine used for the initial two doses. This is based on initial findings from the COV-BOOST trial which is ongoing. So if you’ve completed two courses of the AstraZeneca vaccine, you will be able to have a Pfizer or Moderna booster vaccine.

The advice still stands from the JCVI that pregnant women who received AstraZeneca for their first dose are advised to continue with AstraZeneca for their second dose. This is because the second dose is important for longer lasting protection against COVID-19, and there is less evidence around mixing types of vaccine for the first and

second doses. If you are unsure about receiving the second dose of AstraZeneca, you should arrange to speak to an obstetrician or midwife or GP.

Are there any vaccine clinical trials or studies are taking place in the UK?

Two trials of COVID-19 vaccines in pregnant women in the UK have launched and another is planned.

  • A clinical trial by the vaccine manufacturer Pfizer launched across several National Institute for Health Research (NIHR) sites in the UK in May 2021. Women who participate in this study will be randomly assigned to receive either the vaccine or a placebo (this is a randomised controlled trial, or RCT). Those who received the placebo will then be offered the vaccine once they give birth, so that all the women participating will have received the vaccine either in pregnancy or shortly after giving birth. The role of this study (COVID-19 Vacc Maternal Immunisation) is to provide more robust information on the vaccine immune response in pregnancy, as well as safety reporting and the potential transfer of maternal antibodies to infants.
  • A government-funded clinical trial investigating best COVID-19 vaccine dose interval for pregnant women was launched in England in August 2021. The study is being led by St George’s, University of London, and will gather more robust data on how best to protect pregnant women and their babies from COVID-19. The clinical trial will investigate the immune response to vaccination at different dose intervals, monitoring the protection provided by the vaccine for pregnant women and their babies.
  • There are plans for a pragmatic trial of different vaccines in pregnant women, and full details of that trial will be available shortly.

Can I have a COVID-19 vaccine if I am breastfeeding?

COVID-19 vaccines are recommended to breastfeeding women. There is no plausible mechanism by which any vaccine ingredient could pass to your baby through breast milk. You should therefore not stop breastfeeding in order to be vaccinated against COVID-19.

Should I have a COVID-19 vaccine if I plan to become pregnant?

Women who are trying to become pregnant do not need to avoid pregnancy after vaccination.

Getting vaccinated before pregnancy will help prevent COVID-19 infection and its serious consequences.

I am currently trying to get pregnant. I have had the first dose of COVID-19 vaccination, should I delay pregnancy until after the second dose?

One dose of COVID-19 vaccination gives you good protection against infection, but it is thought that this is not long-lasting and may not protect you for the whole of pregnancy.

COVID-19 vaccines are recommended to pregnant women. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

If you find out you are pregnant after you have had one dose of the vaccine (between doses), you are advised to have your second dose 8 weeks after your first dose. The vaccine is considered to be safe and effective at any stage of pregnancy and there’s no evidence that delaying until after the first 12 weeks is necessary.

We recommend that you complete the course of vaccination before giving birth, or before you enter the third trimester, when the risk of serious illness from COVID-19 is greatest.

Your decision should take into account your personal exposures to and risks from COVID-19. You can discuss these risks with a doctor or your midwife, and you may want to use the RCOG and RCM decision tool to assist you in deciding what to do next.

.

Can I have the vaccine during IVF treatment?

Yes, you can have the COVID vaccine during IVF treatment. The British Fertility Society recommends considering the timing of your vaccine, taking into account that some people may experience minor side effects in the few days after vaccination that you do not want to have during treatment. It may be sensible to separate the date of vaccination by a few days from some treatment procedures (for example egg collection and embryo transfer in IVF) so that any symptoms, such as fever, might be attributed correctly to the vaccine or the treatment procedure. Your medical team will be able to advise you about the best time for your situation. If you have the vaccine at this time, you will help to protect yourself and your baby from the effects of COVID-19 infection in pregnancy.

Is the Covid vaccine safe if undergoing immune therapy during IVF?

A minority of women going through IVF receive immune suppressant therapy. None of the COVID vaccines used in the UK are ‘live’ vaccines, and so cannot cause COVID-19 infection, even in women taking immune suppressing treatments. However, the vaccine may provide less protection as these treatments may reduce the level of anti-COVID antibodies produced by the body in response to the vaccine. It might be preferable, therefore, to delay having the vaccine until the effects of any immune therapy have worn off; or delay your IVF treatment until a few weeks after you’ve had your vaccine. You should discuss the pros and cons of these approaches with your fertility specialist.

Does the COVID-19 vaccine affect fertility?

There is no evidence to suggest that COVID-19 vaccines will affect fertility.
There is no biologically plausible mechanism by which current vaccines would cause any impact on women's fertility. Animal studies of the Pfizer and Moderna vaccines showed that administering these vaccines in rats had no effect on fertility. Evidence has not been presented that women who have been vaccinated have gone on to have fertility problems.

Likewise, the theory that immunity to the spike protein could lead to fertility problems is not supported by evidence. Most people who contract COVID-19 will develop antibody to the spike and there is no evidence of fertility problems in people who have already had COVID-19.
As more evidence becomes available on the safety of each vaccine (from following up people for longer), we will update our advice.

More information on COVID-19 vaccines, fertility and fertility treatment is available from the British Fertility Society (BFS) and Association of Reproductive and Clinical Scientists (ARCS).

What if I find out I am pregnant after I have had the COVID-19 vaccine?

If you receive a dose of the vaccine before finding out you are pregnant, or unintentionally while you are pregnant, you should be reassured that the vaccine is safe and effective at any stage of pregnancy.

If you find out you are pregnant after you have had one dose of the vaccine (between doses), you are advised to have your second dose 8 weeks after your first dose. There’s no evidence that delaying until after the first 12 weeks is necessary.

COVID-19 vaccines are recommended in pregnancy. Vaccination is the best way to protect against the known risks of COVID-19 in pregnancy for both women and babies, including admission to intensive care and premature birth.

Second doses are given 8 after the first dose and we recommend that you complete the course of vaccination before giving birth, or before you enter the third trimester, when the risk of serious illness from COVID-19 is greatest.

Your decision should take into account your personal exposures to and risks from COVID-19. You can discuss these risks with a doctor or your midwife, and you may want to use the RCOG and RCM decision tool to assist you in deciding what to do next.


Are vaccines normally used in pregnancy?

Pregnant women and women who are breastfeeding are already routinely and safely offered vaccines in pregnancy, for example to protect against influenza and whooping cough. Many of these vaccines also protect their babies from infection. These vaccines, like the COVID-19 vaccines, are non-‘live’ vaccines, which are generally considered safe in pregnancy. However, specific evidence regarding the safety of the COVID-19 vaccination in pregnancy is not yet available.

What should I do if I develop a reaction to the vaccine?

Like all medicines, vaccines can cause side effects. These are usually mild and do not last long. Very common side effects in the first day or two after your vaccine include: pain or tenderness in your arm where you had your injection, feeling tired and headaches, aches and chills.

You may also have flu like symptoms and experiences episodes of shivering or shaking for a day or two. If you develop a fever (your temperature is 38C or above) you can rest and take paracetamol, which is safe in pregnancy.

You can report any suspected side effects through the Yellow Card scheme, which allows the Medicines and Healthcare Regulatory Agency (MHRA) to monitor side effects and ensure vaccines are safe.

If you are concerned about your symptoms, you can contact your GP or maternity team for further advice.

There have been reports of an extremely rare clotting problem associated with people receiving the Oxford AstraZeneca vaccine. If you experience any of the following from around 4 days to 4 weeks after vaccination you should seek medical advice urgently:

  • a new, severe headache which is not helped by usual painkillers or is getting worse
  • an unusual headache which seems worse when lying down or bending over or may be accompanied by:
    • blurred vision, nausea and vomiting
    • difficulty with your speech,
    • weakness, drowsiness or seizures
  • new, unexplained pinprick bruising or bleeding
  • shortness of breath, chest pain, leg swelling or persistent abdominal pain.

Covid-19 vaccine for pregnant women discussion

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