← Chapter 28
Anatomy & Physiology · Chapter 28

Fetal Development Timeline

Pregnancy lasts about 38 weeks from fertilization. It is split into three trimesters. It goes from building organs to fast growth. Tap each trimester.

First trimester

Fetal development~38 weeks
📷 Reference image
A real labeled figure to compare with the interactive above.
Fetal Development Timeline reference figure
Fetal Development Timeline — OpenStax, CC BY 3.0 (via Wikimedia Commons)