37 Weeks Pregnant

At 37 weeks pregnant, your baby is about the size of a honeydew melon.

Length
48 cm (18.9 in)
Weight
2.9 kg (6 lb 6 oz)
Trimester
Third
Month
Month 9
Weeks to go
3

Size of a honeydew melon

Your baby at 37 weeks

Your baby is considered early term from 37 weeks. They are practicing breathing, sucking and gripping, and gaining fat to help regulate their temperature after birth.

Your body at 37 weeks

Your cervix may begin to soften and open. You may lose your mucus plug, which can happen days or even weeks before labor.

Common symptoms at 37 weeks pregnant

  • Losing the mucus plug
  • Increased discharge
  • Braxton Hicks
  • Nesting

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

Tips for week 37

  • Call your provider if your waters break, even without contractions.
  • Keep your phone charged and your bag by the door.
  • Babies benefit from staying in until at least 39 weeks unless there is a medical reason.

Your week 37 checklist

  • Keep your bag by the door
  • Call if your waters break
  • Rest and stay hydrated

Helpful at 37 weeks

37 Weeks Pregnant: your questions answered

How big is a baby at 37 weeks pregnant?

At 37 weeks your baby is about the size of a honeydew melon: around 48 cm (18.9 in) long and weighing about 2.9 kg (6 lb 6 oz). Every baby grows at their own pace.

How many months is 37 weeks pregnant?

37 weeks pregnant is month 9 of your pregnancy, in the third trimester. Your due date is 3 weeks away.

What does losing the mucus plug mean?

It is a sign your cervix is starting to change. It can happen days or even weeks before labor, so it does not mean labor is starting right away.

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

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