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LMP and the weeks of gestation
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LMP and the weeks of gestation

When talking about weeks of gestation or pregnancy, it is usual to start counting from the date of the beginning of the last menstrual period (LMP) or, in other words, from the beginning of the last menstrual cycle.

This is because, normally, the woman does not know the exact day on which fertilization occurred. However, it is easy for the expectant mother to know when her last menstrual period was.

By (gynecologist), (gynecologist), (gynecologist), (embryologist), (embryologist), (biochemist) and (psychologist).
Last Update: 08/19/2022