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Women's safety period calculator

Usually, the interval between two menstruations is about: < > Retest

*Please click to select the first day of menstruation

  • Selected date
  • Safe period: The probability of pregnancy is small, so contraceptives and contraceptives are unnecessary.
  • Ovulation period: The ovulation period is the day of ovulation and the first 5 days and the last 4 days, during which the possibility of pregnancy is greater.
  • Menstrual period: please pay attention to menstrual hygiene

The female safety period calculator is a tool for calculating the menstrual period, ovulation period and safety period of women. Fill in the approximate time interval between two normal menstruations, and select the first day of menstruation to calculate the physiological cycle.

The first day of menstruation for women is 14 days backward, the first 4 days of the 14th day, and the last 5 days are the danger period. In addition, the security period is relatively safe.