3 Weeks Pregnant: Week-by-Week Guide
Congratulations! You’re pregnant. Sperm meets egg between weeks 2 and 3 and 23 X chromosomes and 23 Y chromosomes come together to create a little magic – a tiny version of you! At this stage of your journey, it’s all systems go. Explore this week-by-week guide to find out what’s in store for your baby and your body in week 3 of pregnancy.