Other terms
First Pregnancy Trimester,First Pregnancy Trimesters,Pregnancy Trimesters, First,Early Placental Phase,Early Placental Phases,Phase, Early Placental,Phases, Early Placental,Placental Phase, Early,Placental Phases, Early,Pregnancy, First Trimester,First Trimester Pregnancies,First Trimester Pregnancy,Pregnancies, First Trimester,Trimester, First,First Trimester,First Trimesters,Trimesters, First
Description
Pregnancy Trimester, First: The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation.
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