Normal Pregnancy: First Trimester

Fetal development in the first trimester

The first trimester lasts from week 1 through week 12.

Credits

ByHealthwise Staff
Primary Medical ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Last RevisedJuly 23, 2012
By: Healthwise StaffLast Revised: July 23, 2012
Medical Review: Sarah Marshall, MD - Family Medicine
Kirtly Jones, MD - Obstetrics and Gynecology

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