Pregnancy

Pregnancy week by week

Tap any week to see baby’s size, your symptoms, what to do this week + key milestones. 1 to 42 weeks, research-backed by NICE NG201 + NHS.

First trimester

Weeks 1–13. Conception, missed period, dating scan, end-of-T1 milestone.

Second trimester

Weeks 14–27. Bump shows, anomaly scan, first kicks, viability reached.

Third trimester

Weeks 28–42. GTT, anti-D, GBS, full term + birth.

BumpBites Pregnancy week-by-week is educational and not a substitute for professional medical advice. Always consult your midwife or GP. Sources: NICE NG201 antenatal care, NHS, RCOG. Read the full medical disclaimer.