Week 4 — size of a poppy seed.

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

Hormone shifts can bring fatigue, nausea, tender breasts and emotional ups and downs.

About the size of a poppy seed. Organs and senses are developing on schedule.

Stock the freezer with simple, freezer-friendly meals.

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.