Your baby’s development

You're 29 weeks pregnant and your baby is nearly 40cm in length and weighs 2lb 5oz or thereabouts, although by now there’s quite a variation in size and weight between babies. During the third trimester, you can expect your baby to triple in weight by the time 40 weeks are up. In many respects your baby is fully formed now – all the organs are developed but will continue to mature as they get ready to greet the world.

29 weeks fetus
Broccoli pictogram

Baby on board! Explore your pregnancy journey

Discover something new about your baby's development every week, with exciting emails tailored to every stage of your pregnancy.

You & your body

Lots of mums have difficulty sleeping during pregnancy. Try sleeping on your side with three pillows – one between your knees, one in the small of your back and one under your head. Have a warm, milky drink before you go to bed but it’s best to avoid tea or coffee because the caffeine can make it too difficult to relax and might make you want to wee in the night. You can also try putting a few drops of a diluted and pregnancy-safe essential oil into your bath such as lavender to help you relax and wind down.

Did you know?

By week 29 you are legally entitled to begin your maternity leave. Just be sure to keep in mind that any weeks taken before the birth will be one less to spend when your baby arrives.

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