Week-by-week pregnancy guide

Support

Your baby is the size of
a tiny seed

tiny seed
Week 12nd tri3rd triWeek 40

1 of 40·1st trimester

It all starts here — your body is quietly getting ready for something amazing.

39 more weeks to go

This is an approximate guide, compiled to our best effort as of February 2026. Every pregnancy is different — please consult your doctor or midwife for medical advice.

Sources: Cleveland Clinic, Mayo Clinic, NHS, WHO standards