Your baby at 28 weeks
By 28 weeks, your baby weighs around 1kg and is perfectly formed.
The baby's heartbeat can now be heard through a stethoscope. Your partner may even be able to hear it by putting an ear to your bump, but it can be difficult to find the right place.
Your baby keeps putting on weight, as more and more fat appears under the skin.
You at 28 weeks
At your 28-week antenatal appointment, your midwife or doctor will:
- measure your blood pressure
- test your urine for protein
- discuss the results of any screening tests from your last appointment
Heartburn or acid reflux is common in pregnancy. It can be uncomfortable but is not harmful.
Find out how to avoid indigestion and heartburn in pregnancy and how to ease the symptoms.
If you've been told your blood type is rhesus negative, you'll be offered an injection in pregnancy to protect your unborn baby. You'll be offered tests for your blood and your baby's blood at birth, and you may be offered a second injection to protect your babies in any future pregnancies.
RSV vaccination
You can have the RSV vaccine from 28 weeks. This will help protect your baby from respiratory syncytial virus (RSV) for the first few months after they're born.
Speak to your maternity service or GP surgery if you're 28 weeks pregnant or more and have not been offered the RSV vaccine.
Things to think about
The stages of labour and birth and signs labour has started.
What happens when you have a caesarean section.
Exercise is good for you and your baby at any stage of pregnancy – find out about exercise in pregnancy and the sports and positions you should avoid.
Start4Life has more about you and your baby at 28 weeks of pregnancy.
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Media review due: 2 December 2026