First trimester · Week 10 of 40
10 weeks pregnant: the size of a strawberry
Now called a fetus. Vital organs are formed and begin to mature; tiny nails start to grow.
Reviewed against ACOG, NHS and WHO guidance · Updated November 2026
Typical size
About 3 cm
25% of the way to your due date
Your baby this week
Now called a fetus. Vital organs are formed and begin to mature; tiny nails start to grow.
Your body this week
Your waist may start to thicken slightly.
Tip for week 10
Ask about first-trimester screening options for chromosomal conditions.
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.