Display Mode:

    Main content

    Health Information

    Normal Pregnancy: First Trimester

    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

    This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

    © 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.