Second trimester · Week 26 of 40
26 weeks pregnant: the size of a lettuce
The eyes begin to open. Brain wave activity increases.
Reviewed against ACOG, NHS and WHO guidance · Updated November 2026
Typical size
About 35 cm · 760 g
65% of the way to your due date
Your baby this week
The eyes begin to open. Brain wave activity increases.
Your body this week
Backaches may grow as your centre of gravity shifts.
Tip for week 26
Wear flat, supportive shoes and keep good posture.
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.