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29 Weeks Pregnant: Your Baby, Your Body and What to Do

Your baby's bones are hardening, and the head is growing to make room for the brain.

Third trimesterWeeks 28 to 40
a butternut squashBaby is about the size of
about 39 cmApproximate length
about 1.15 kgApproximate weight
11 weeks to goUntil week 40

Before you use this guide: Pregnancy weeks are counted from the first day of your last period. Sizes are rough averages, and healthy babies vary. This is general information, not an individual medical assessment, so please confirm personal health decisions with your doctor or midwife.

How your baby is growing

Your baby's bones are hardening, while the skull stays soft and flexible so that it can pass through the birth canal. The head is growing to hold the quickly developing brain. Your baby needs plenty of calcium for the bones, which comes from your diet.

The muscles and lungs continue to mature. Your baby kicks, stretches and rolls, and you may see a foot or elbow move across your tummy.

How you may be feeling

You may be more tired and short of breath and have heartburn. Your belly may itch, and leg cramps can wake you at night. Your breasts may leak a little yellowish fluid called colostrum, which is normal.

Your to-do list for week 29

When to ask for help

Report a severe headache, vision changes, pain under the ribs or sudden swelling right away. They can be signs of pre-eclampsia.

For heavy bleeding, severe pain, fluid leaking, a severe headache with vision changes, or a baby who is moving less than usual, do not wait for your next appointment. Contact your midwife, doctor or maternity unit straight away. Our guide to pregnancy warning signs has more detail.

Trusted resources to read next

These public health resources provide additional information. Guidance can vary by country, so prioritise advice from your own care team and local health service.

This content is for general information only and is not medical advice. Every pregnancy and every baby is different. Always talk to your doctor, midwife or paediatrician about your own situation, and seek urgent care if you are worried.