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Baby size by week

33 weeks pregnant: baby is the size of a pineapple

At 33 weeks, baby is about the size of

a pineapple

Baby's bones are hardening, except the skull, which stays soft for birth.

Week 32Week 34

Baby is measured from head to heel at this stage. These are rounded averages. Your ultrasound is the only real measurement of your baby.

Questions moms ask

How big is a baby at 33 weeks?

At 33 weeks, baby is about the size of a pineapple: around 43.7 cm (17.2 in) long from head to heel, and weighs about 1.9 kg (4 lb 3 oz). Every baby grows at their own pace.

What trimester is 33 weeks?

33 weeks is in the third trimester.

How many months pregnant is 33 weeks?

Roughly month 8 of 9.

Related tools

This page gives estimates, not medical advice. If you're worried about your baby's growth, talk to your doctor or midwife.