Week 18 — size of a navel orange.

A two-minute partner brief: how baby is growing, what's changing for her, and one practical thing you can do this week.

Energy often returns. The bump shows. Skin and hair changes are common.

About the size of a navel orange. Organs and senses are developing on schedule.

Photograph the bump weekly for a keepsake.

Educational guidance, not medical advice. If you're worried about symptoms, contact your midwife, GP or maternity unit.

Plan ahead with partner tools.

Due date, trimester tracker, appointment timeline — built for partners.