Second trimester · Week 23 of 40
23 weeks pregnant: the size of a grapefruit
The baby can hear your voice and heartbeat.
Reviewed against ACOG, NHS and WHO guidance · Updated November 2026
Typical size
About 29 cm · 500 g
57% of the way to your due date
Your baby this week
The baby can hear your voice and heartbeat.
Your body this week
Mild swelling in feet and ankles is common.
Tip for week 23
Rest with your feet up; report sudden swelling of face or hands to your provider.
Carry this guide in your pocket
Mamivaa is a free pregnancy app with a week-by-week tracker, vitamin and water reminders, a food scanner and a baby checklist.
Start freeThis guide offers general information and does not replace advice from your doctor or midwife. If something feels wrong, contact your provider or emergency services.