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The flu jab in pregnancy

It's recommended that all pregnant women have the flu vaccine, whatever stage of pregnancy they're at. It's free for pregnant women.

Why are pregnant women advised to have the flu vaccine?

A flu jab will help protect both you and your baby.

Pregnancy changes how the body responds to infections such as flu. There is good evidence that pregnant women have a higher chance of developing complications if they get flu, particularly in the later stages of pregnancy.

Young babies also have a higher risk of getting seriously ill if they get flu. Having flu increases the chances of pregnant women and their babies needing intensive care.

One of the most common complications of flu is bronchitis, a chest infection that can become serious and develop into pneumonia.

If you have flu while you're pregnant, it could cause your baby to be born prematurely or have a low birthweight, and may even lead to stillbirth or death.

Is the flu vaccine safe in pregnancy?

Yes. Studies have shown that it's safe to have a flu vaccine during any stage of pregnancy, from the first few weeks up until you go into labour.

Women who have had a flu vaccine while pregnant also pass some protection on to their babies. This lasts for the first few months after they're born, when they're particularly at risk from flu.

It's safe to breastfeed if you had the flu vaccine while pregnant.

If you're already breastfeeding, you can have the flu vaccine if you're eligible (for example, because of a long-term health condition).

When should I have the flu jab?

You can get the flu vaccine from September. It's best to get vaccinated as soon as you can, especially if you're near to your due date. Getting vaccinated will help protect your baby in the first few months after they're born.

If you were not vaccinated in the autumn, you can be vaccinated later in the winter although it's better to get it earlier.

Do not worry if you find that you're pregnant later in the flu season – you can have the vaccine then if you have not already had it.

If you miss having the flu vaccine for any reason, you can still have it up until you go into labour.

How do I get the flu vaccine?

To get a flu vaccine, you can:

Some people may be able to get vaccinated through their maternity service.

If I had the flu jab last year, do I need to have it again now?

Yes, because the viruses that cause flu change every year. This means the types of flu virus the vaccines are designed to prevent this year may be different from last year. The protection from a flu vaccine also goes down with time.

If you had the flu vaccine during the last flu season because you were pregnant (same pregnancy or a previous pregnancy), or because you're in a vulnerable group, you need to have it again this year.

Will the flu jab give me flu?

No. Injected flu vaccines do not contain any live viruses, and cannot cause flu. Some people get a slightly raised temperature and aching muscles for a couple of days afterwards, and you may feel sore at the injection site.

Can I have the flu jab at the same time as other vaccines?

You can have a flu vaccine at the same time as other pregnancy vaccinations, but it's best to have them as soon as they're offered rather than waiting to have them at the same time.

You should have your:

  • flu vaccine as soon as possible when it becomes available (usually from September)
  • whooping cough vaccine at around 20 weeks pregnant
  • RSV vaccine from 28 weeks pregnant

Do not delay getting any of your vaccinations so you can have them at the same time.

I'm pregnant and think I have flu. What should I do?

Talk to a GP or midwife as soon as possible. If you do have flu, there's a prescribed medicine you can take that might help, or reduce your risk of complications, but it needs to be taken very soon after symptoms appear.

More information

Page last reviewed: 5 September 2022
Next review due: 5 September 2025