Pregnancy Week 30: Symptoms, Baby Size & What to Expect

Your Baby at Week 30

Your baby measures roughly the size of a large cabbage (15.7 in) and weighs about ~1.3kg. The major developments this week: Bone marrow producing red blood cells, fingernails fully formed, brain controlling body temperature, eyes can focus.

Your baby's bone marrow has completely taken over red blood cell production — previously this was done by tissue groups and the spleen.

Symptoms at Week 30

Common symptoms during week 30 of pregnancy include: Fatigue intensifying, Braxton Hicks may increase, mood swings, difficulty sleeping, back pain, frequent bathroom trips.

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: Pregnancy After Miscarriage | Pregnancy Week 27 Guide

What to Do This Week

Pack your hospital bag if you haven't already. Include: comfortable robe, nursing bras, going-home outfit (maternity size), snacks, phone charger, baby's first outfit, and car seat.

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 30?

Yes, most symptoms at week 30 are completely normal. Common experiences include Fatigue intensifying and Braxton Hicks may increase. 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 30 weeks?

At week 30, your baby is approximately the size of a large cabbage, weighing about ~1.3kg. Bone marrow producing red blood cells.

What should I avoid at week 30 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.