Your baby's incredible journey
Follow your little miracle's amazing development from the very beginning. Every week brings new wonders as your baby grows stronger and more beautiful.
Week-by-week tracking
Development milestones
Size comparisons
Baby Development Tracker
Discover what's happening with your baby this week or explore any week of pregnancy
Development Timeline
First Trimester
All major organs form during these crucial first 12 weeks.
Second Trimester
Rapid growth and movement begin - the golden period!
Third Trimester
Final preparations for birth and meeting your baby.