Pregnancy Week 13: What to Expect
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Medically reviewed by
Baby Circle Medical Board
Reviewed on 12 July 2026
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Your baby is about the size of a Pea podApprox. ~7.4 cm · Second trimester
Your baby this week
Fingerprints form, vocal cords develop, and your baby's body starts to catch up with the head in size.
Your body this week
Welcome to the second trimester — energy and appetite often improve.
💡 Tips for week 13
- Start or continue prenatal yoga or walking
- Eat calcium and protein for growing bones
- Stay on top of hydration
✅ To do this week
- Book your anatomy (TIFFA) scan
- Plan finances and maternity leave
- Keep antenatal appointments
Common questions — Week 13
Is the second trimester really easier?
For many, yes — nausea eases and energy returns, though everyone differs.
What is the anatomy scan?
A detailed 18–20 week ultrasound that checks your baby's structure and growth.
Track your week with The Circle 💜
Private, doctor-supported community for parents due the same month as you.
Join The CircleFull 40-Week GuideReferences
- WHO. Recommendations on antenatal care for a positive pregnancy experience. who.int
- ACOG. Your Pregnancy and Childbirth. acog.org
- NHS. Week-by-week guide to pregnancy. nhs.uk
- CDC. During Pregnancy. cdc.gov
- UNICEF. Maternal and newborn health. unicef.org
- Indian Academy of Pediatrics. iapindia.org
Medical disclaimer: This article is for general education only and is not a substitute for professional medical advice. Always consult your doctor about your pregnancy, and seek care immediately for any warning signs. Reviewed by the Baby Circle Medical Board.