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🤰 Pregnancy week by week

23 Weeks Pregnant: Baby Size, Development & Symptoms

Your baby is about the size of a grapefruit.

By Cushies Editorial Team · 2 min read · Updated 3 August 2026

Baby's sizeAbout the size of a grapefruit
Lengthabout 29 cm
Weightabout 500 g
TrimesterSecond trimester, month 6

Your baby this week

The lungs are developing the blood vessels they need for breathing.

Your body this week

Swollen ankles and feet are common.

Tip of the week

Put your feet up when you can, and avoid standing for long periods.

Quick answers

How big is my baby at 23 weeks?

About the size of a grapefruit: around 29 cm long and around 500 g.

How many months is 23 weeks pregnant?

23 weeks is in month 6 of pregnancy, in the second 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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