Pregnancy , also known as gestation , is the time during which one or more offspring develops inside a woman. Pregnancy is divided into three trimesters, each lasting for approximately 3 months. Prenatal care improves pregnancy outcomes. Associated terms for pregnancy are gravid and parous. Gravidus and gravid come from the Latin word meaning "heavy" and a pregnant female is sometimes referred to as a gravida. Similarly, the term parity is used for the number of times that a female carries a pregnancy to a viable stage.
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