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 34 of pregnancy

34 Weeks Pregnant

Third trimester

Baby size

About the size of a cantaloupe

45 cm

What's developing

The central nervous system and lungs are maturing. Fingernails now reach the fingertips.

Common symptoms this week

Blurred vision
Fatigue
Swelling
Pelvic pressure

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

Jump to another week

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40