Used to calculate the rhythm of women, sexual intercourse Gospel.
Safe period calculator, a simple and practical tool for calculating women menstrual cycle.
The date of the general female ovulation before menstruation in the next 14 days. Next menstrual cramps the first day of counting, subtracting the last 14 days or 14 days is the ovulation day, 5 days before ovulation and after four days together called ovulation. In addition to menstrual period and ovulation, the rest are safe period of time. Rhythm is not necessarily "safe" sex is also recommended in the rhythm should be used contraceptive drugs or contraceptives.
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