The Pregnant Family-- Unit II-A Conception and Biophysical ...

About 10-14 days after ovulation, the thick lining of the uterus breaks down and is shed through the vagina. This is called menstruation (a period). The first day of a period is the start (day 1) of a new menstrual cycle. Bleeding usually lasts 3-7 days and approximately 4-12 tablespoons of … ................
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