Definition: The early stages of pregnancy, from fertilization of the egg by the sperm and implantation through approximately the eighth week of pregnancy.
By Nicole Galan, RN, About.com
Updated: April 22, 2008
About.com Health's Disease and Condition content is reviewed by Meredith Shur, MD
Definition: The early stages of pregnancy, from fertilization of the egg by the sperm and implantation through approximately the eighth week of pregnancy.
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