Headaches in pregnancy: what’s normal and when it needs checking

Headaches can be common in early pregnancy and usually ease as pregnancy goes on. But a severe headache can sometimes be a sign of pre-eclampsia, so it helps to know the difference.

Are headaches normal in pregnancy?

The NHS says headaches can be common in early pregnancy, they usually ease as pregnancy goes on and they aren’t harmful to your baby. Dehydration and tiredness can make them worse.

What can help

Drink plenty of fluids.
Get enough sleep, and rest and relax when you can. The NHS suggests pregnancy yoga.
Take paracetamol if you need to. The NHS says paracetamol is the first-choice painkiller in pregnancy, and that you should take it for the shortest possible time. Ask your pharmacist, midwife or GP how much you can take and for how long.

The NHS says to avoid painkillers containing codeine, and NSAIDs such as ibuprofen, unless a doctor prescribes them.

When a headache needs checking

A headache can be a symptom of pre-eclampsia, a condition that usually starts after 20 weeks of pregnancy. The NHS says to call your maternity unit, your GP or NHS 111 if you have a severe headache, especially with:

vision problems, such as blurring or seeing flashing lights
pain just below your ribs
vomiting
a sudden increase in swelling in your face, hands, feet or ankles

The NHS pre-eclampsia page lists a severe headache that doesn’t go away with simple painkillers.

The NHS pre-eclampsia page says the same applies if you have been pregnant or given birth in the last few weeks. Call your maternity unit if you have the number. If you’ve recently given birth, or can’t reach your maternity unit, call NHS 111. The NHS says to always call 999 if you think it’s a life-threatening emergency. Other signs include feeling very unwell, and heartburn that doesn’t go away with heartburn medicines.

Routine blood pressure and urine checks at your antenatal appointments are there to pick up early signs. See urine tests and blood pressure checks in pregnancy.

Questions people ask

Is it safe to take paracetamol for a headache?

The NHS says it’s the first-choice painkiller in pregnancy. Take it for the shortest possible time, and ask your pharmacist, midwife or GP how much and for how long.

I get headaches every day. Should I mention it?

Yes. Tell your midwife or GP if your headaches are frequent or you’re worried about them.

Can a headache after birth be pre-eclampsia?

Yes. The NHS says to get urgent help if you’ve had a baby in the last few weeks and have a severe headache or other signs of pre-eclampsia. Call NHS 111 if you can’t reach your maternity unit.