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8 Weeks Pregnant: Baby Size, Development & Symptoms

Your baby is about the size of a kidney bean.

By Cushies Editorial Team · 2 min read · Updated 2 September 2026

Baby's sizeAbout the size of a kidney bean
Lengthabout 1.6 cm
Weightabout 1 g
TrimesterFirst trimester, month 2

Your baby this week

Fingers and toes are starting to form, and the baby has begun making small movements you cannot feel yet.

Your body this week

Your uterus is growing, though you probably are not showing yet.

Tip of the week

Ask your doctor about your first trimester scan and blood tests.

Quick answers

How big is my baby at 8 weeks?

About the size of a kidney bean: around 1.6 cm long and around 1 g.

How many months is 8 weeks pregnant?

8 weeks is in month 2 of pregnancy, in the first trimester.

This article is general information, not medical advice. If you are worried about your health or your baby's, please talk to your doctor.

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