birthdate.baby Week

Week by week  /  Third trimester

Week 31

Your baby is about the size of a coconut. Here is what is happening, what you might feel, and the two or three things worth doing this week.

Size right now

A coconut

41.1 cm / 16.2 in, 1502 g / 3 lb 5 oz

Length
41.1 cm / 16.2 in
Weight
1502 g / 3 lb 5 oz
Trimester
Third
To go
9 weeks

The baby

All five senses are working. The baby turns toward light and reacts to your voice differently than to a stranger's.

You

Braxton Hicks get more noticeable. Colostrum may leak.

This week

Pack a first draft of the hospital bag, you can add to it later
Time a set of Braxton Hicks once so you know what irregular feels like

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Averages, not targets. Babies vary a great deal and a scan that reads differently from this page is not a problem. Anything that worries you is a call to your midwife or doctor, not a search.