Week by weekTrimester 3

Week 37 — size of a leek.

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

For her

Sleep gets harder, Braxton Hicks may begin and nesting instincts kick in.

For baby

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

Partner action this week

Bring the bags, breathe with her.

Red flag

Waters breaking or regular contractions — go in.

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.

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