The Difference Between an Embryo and a Fetus
By Beth Ann Mayer, Nov 14, 2023 The second trimester begins at 13 weeks, explains Kecia Gaither, MD, MPH, MS, MBA, FACOG, a double board-certified OB-GYN and maternal fetal medicine specialist, and director of perinatal services/maternal fetal medicine at NYC Health + Hospitals/Lincoln in the Bronx. The odds of miscarriage drop to about 1-5%.4 During the second trimester, Dr. Gaither [...]