← Chapter 28
Anatomy & Physiology · Chapter 28
Fetal Development Timeline
Pregnancy runs about
38 weeks
from fertilization, split into three trimesters — from laying down organs to rapid growth. Tap each trimester.
First trimester
Fetal development
~38 weeks
1st
2nd
3rd
📷 Reference image
A real labeled figure to compare with the interactive above.
Fetal Development Timeline — OpenStax, CC BY 3.0 (via Wikimedia Commons)
