Normal Pregnancy: First Trimester

Fetal development in the first trimester

The first trimester lasts from week 1 through week 12.

ByHealthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer Kirtly Jones, MD - Obstetrics and Gynecology

Current as ofMay 30, 2016

Current as of: May 30, 2016

Author: Healthwise Staff

Medical Review: Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology