• Early weeks of pregnancy

    Early weeks of pregnancy
    The first trimester of a pregnancy is a time of incredible growth and development. A 7-week fetus will have begun to develop all essential organs.

    Update Date: 8/24/2011

    Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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