13 Weeks Pregnant
Your baby is the size of a Kiwi Fruit. Discover exactly what is happening to your body and your baby this week.
New pregnancy guide: Learn how weeks are counted, what each trimester means, and how to interpret your calculator results for better preparation and planning.
Read the full guide
Baby Growth Curve
This chart visualizes the average length of the baby from week 1 to 40. Values are based on standard clinical averages.
Track your pregnancy journey