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 12 of pregnancy

12 Weeks Pregnant

First trimester

Baby size

About the size of a lime

5.4 cm

What's developing

Reflexes are developing — the baby may open and close fingers or curl toes. The face looks more human.

Common symptoms this week

Reduced nausea
Slight bump for some
Dizziness
Increased energy

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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