Pregnancy Week 17: Symptoms, Baby Size & What to Expect

Your Baby at Week 17

Your baby measures roughly the size of a pomegranate (5.1 in) and weighs about ~140g. The major developments this week: Skeleton changing from cartilage to bone, fat stores beginning to form, umbilical cord growing thicker and stronger.

Your baby is now developing a unique set of fingerprints — no two are alike, not even for identical twins.

Symptoms at Week 17

Common symptoms during week 17 of pregnancy include: Feeling more balanced and energetic, stretch marks may appear, increased appetite, vivid dreams, mild swelling in feet.

Remember that every pregnancy is unique — you may experience all, some, or none of these symptoms. If anything feels unusual or concerning, don't hesitate to contact your healthcare provider.

📖 Also read: Maternity Leave Planning Guide | Pregnancy Heartburn Remedies

What to Do This Week

This is a great week to start a pregnancy journal or take weekly bump photos. Many moms wish they'd documented more of this time.

Nutrition & Wellness

Staying well-nourished is crucial at every stage of pregnancy. Focus on folate-rich foods (leafy greens, lentils, fortified cereals), iron (lean meats, beans, spinach), calcium (dairy, fortified plant milks), and omega-3 fatty acids (salmon, walnuts, flaxseed). Stay hydrated with at least 8-10 glasses of water daily.

Frequently Asked Questions

Is it normal to feel [symptom] at week 17?

Yes, most symptoms at week 17 are completely normal. Common experiences include Feeling more balanced and energetic and stretch marks may appear. However, contact your doctor if you experience severe pain, heavy bleeding, or persistent vomiting that prevents you from keeping fluids down.

How big is my baby at 17 weeks?

At week 17, your baby is approximately the size of a pomegranate, weighing about ~140g. Skeleton changing from cartilage to bone.

What should I avoid at week 17 of pregnancy?

Continue avoiding alcohol, raw/undercooked meats and fish, unpasteurized dairy, high-mercury fish (shark, swordfish, king mackerel), deli meats unless heated until steaming, and limit caffeine to under 200mg per day.