How accurate is a due date?

A due date is an estimate. Only about 1 in 20 babies arrive on it; most are born within two weeks either side.

Can my due date change?

Yes — early ultrasound measurements can refine it. Later scans usually do not shift an established date.

Are these baby-size comparisons exact?

The fruit and vegetable comparisons are friendly approximations of average length. Every pregnancy is unique — your baby may be a little larger or smaller.

Week 27 of pregnancy

27 Weeks Pregnant

Second trimester

Baby size

About the size of a cabbage

36.6 cm

What's developing

You're near the end of the second trimester. The baby has regular sleep and wake cycles now.

Common symptoms this week

Leg cramps at night
Restless legs
Heartburn
Shortness of breath

This is an estimate for information only — only about 1 in 20 babies arrive on their due date. Always confirm dates with your midwife or doctor.

Frequently asked questions

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