Pregnancy Week 17: 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 PearApprox. ~13 cm · Second trimester
Your baby this week
Fat stores begin, the skeleton shifts from cartilage to bone, and the umbilical cord strengthens.
Your body this week
Bump grows; skin changes and stretch marks may start; increased appetite.
💡 Tips for week 17
- Moisturise to ease itching
- Wear supportive shoes
- Balance rest and activity
✅ To do this week
- Prepare for the anatomy scan
- Continue vitamins
- Stay active
Common questions — Week 17
Can I prevent stretch marks?
You can't fully prevent them, but moisturising and gradual weight gain help skin comfort.
Is a bigger appetite okay?
Yes — choose nutrient-dense foods rather than empty calories.
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.