Pregnancy Week by Week
Detailed guides for all 40 weeks of pregnancy — baby development, symptoms, what to expect, and expert tips.
Trimester 1
First Trimester
Weeks 1–13
From conception through the first 13 weeks — all major organs form and morning sickness is common.
Trimester 2
Second Trimester
Weeks 14–27
The "golden trimester" — nausea fades, you'll feel baby move, and energy returns.
Trimester 3
Third Trimester
Weeks 28–40
Baby gains weight rapidly and prepares for birth. Prepare your hospital bag and birth plan!