birthdate.baby Week

Week by week  /  Second trimester

Week 18

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

Size right now

A bell pepper

14.2 cm / 5.6 in, 190 g / 7 oz

Length
14.2 cm / 5.6 in
Weight
190 g / 7 oz
Trimester
Second
To go
22 weeks

The baby

Myelin begins to coat the nerves. The ears are in their final position. If the baby is a girl, the uterus and fallopian tubes are formed.

You

Dizziness on standing is common now, blood pressure runs lower in the middle of pregnancy.

This week

Anatomy scan window opens, 18 to 20 weeks
Take a photo of the bump this week, you will want the sequence later

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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.