A fetus is the growing baby in the womb (uterus) from 10 completed weeks after a pregnant woman's last menstrual period until birth.

Current as of: November 21, 2017

Author: Healthwise Staff

Medical Review: Sarah A. Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology, Reproductive Endocrinology