You at 30 weeks pregnant: heartburn, reflux and other symptoms
Physical symptoms
You might be getting more heartburn and reflux, as your baby takes up more and more space.
Your doctor or midwife will continue to check your blood pressure at every antenatal visit.
Physical changes
Your breasts might still be getting bigger too.
Sleep difficulties
You might be finding that your sleep patterns are disrupted – you’re waking in the night and can’t get back to sleep. This is tiring, but it’s also common.
Try to rest when you can during the day.
And remember to go to sleep on your side.

Your baby at 30 weeks of pregnancy
How big is your baby at 30 weeks?
Your baby measures around 27 cm from head to bottom and weighs about 1.3 kg.
What’s happening with your baby’s development at 30 weeks?
- Your baby is growing important fat stores beneath the skin, making the skin look smoother.
- The lanugo – the fine covering of hair on your baby’s body – is starting to decrease. But if your baby was born now, they would still have quite a lot of lanugo covering their body.
- Some babies can suck their thumbs.
Things to think about at 30 weeks: child car seats
Babies aged under 6 months must be seated in a properly fastened, adjusted and approved rear-facing child car seat. It’s illegal to travel with a baby in a car without a car seat.
You can use one of the following:
- a car seat designed specifically for the first 6 months, like an infant capsule
- a convertible car seat, which must be configured as rear facing in the first 6 months.
Buy or hire?
You could look into hiring rather than buying a child car seat, particularly if you plan to use an infant capsule. Babies outgrow infant capsules very quickly.
You might be able to hire an approved child car seat from your local council, an ambulance service or a private company. Ask your midwife about options in your local area.
If you’re not planning to buy a child car seat, now is a good time to book one for hire.
Fitting and installation
Whether you buy or hire, the car seat needs to be fitted correctly. It’s a good idea to have it professionally installed or checked at an authorised installation or fitting service.
If you install the car seat yourself or need to move it later, always follow the manufacturer’s instructions. Do this soon in case your baby is born early.