30 Weeks Pregnant: Baby Size, Symptoms & Tips

Your baby at 30 weeks

Your baby is about the size of a large coconut. The fine lanugo hair is starting to disappear, and their bone marrow has taken over making red blood cells.

Your body at 30 weeks

Feeling clumsy, tired and short of breath is common. Mood swings can return as your due date gets closer.

Common symptoms at 30 weeks pregnant

Fatigue
Mood swings
Clumsiness
Trouble sleeping

Every pregnancy is different. Having none of these symptoms is normal too.

Tips for week 30

Talk openly with your partner or a friend about any worries; anxiety in pregnancy is common and treatable.
Decide on a car seat and learn how to install it.
Plan who will support you during labor.

Your week 30 checklist

Choose and practice installing a car seat
Plan your labor support
Talk to someone about any worries

Helpful at 30 weeks

30 Weeks Pregnant: your questions answered

How big is a baby at 30 weeks pregnant?

At 30 weeks your baby is about the size of a coconut: around 38 cm (15.0 in) long and weighing about 1 kg (2 lb 3 oz). Every baby grows at their own pace.

How many months is 30 weeks pregnant?

30 weeks pregnant is month 7 of your pregnancy, in the third trimester. Your due date is 10 weeks away.

Why am I so tired at 30 weeks?

Your growing baby, extra weight, poor sleep and rising iron demand can all leave you exhausted. Rest when you can, and ask your provider to check for anemia.

Sources

This guide is written from public guidance by the American College of Obstetricians and Gynecologists (ACOG), the NHS, the CDC and the World Health Organization. Baby sizes are averages; your baby may be bigger or smaller and still perfectly healthy.

General information only, not medical advice.

History of updates

October 21, 2026: Added a weekly checklist and common questions.
October 21, 2026: Matched fruit, length and weight to the Prego app.
October 21, 2026: Published.