Safe menstrual period calculator

Safe period contraception is a contraceptive measure based on women's menstrual cycle. Women's chance of getting pregnant is the lowest during the safe menstrual period. However, many women do not know how to calculate the safe period, or the calculated safe menstrual period is inaccurate, which can easily lead to accidental pregnancy. Are the safe period calculators on the Internet accurate nowadays?

Is the safe period calculator accurate?

The calculation method of women's safety period is based on the period from the end of the menstrual period to the day before ovulation. From the first day after ovulation to the day before the next menstrual period is the safe period after ovulation. Generally speaking, the safe menstruation period after ovulation is safer than the safe menstruation period before ovulation.

If the menstrual cycle has always been regular, ovulation may be on the 14th day before the next menarche. After the egg is released, it can survive for about 2 to 5 days, and the male sperm can survive for 1 to 3 days after entering the female reproductive system. Therefore, it is easy to get pregnant if you have sex 5 to 7 days before ovulation and 4 to 6 days after ovulation. The rest of the time is relatively safe.

For a woman with a regular menstrual cycle, the time of ovulation is basically stable. Having sex during the safe period of menstruation to achieve the purpose of contraception is called the safe period contraception method. This method is not suitable for young people, because the frequency of their sexual life cannot be about a week apart. This type of method is available for adults.

Because the time of female ovulation is affected by many factors such as the external environment, climate, one's own mood, stress, disease, exercise intensity and health status, it is necessary to calculate the cycle time for several months. It is usually 6 months, and only by finding the longest cycle time and the shortest cycle can a more reliable menstrual safety period be calculated.

Common questions about safe period contraception

1. Before choosing safe period contraception, it is recommended that you record your menstrual cycle from the third quarter to facilitate your understanding of the cyclical nature of your menstrual period.

2. In addition to calculating the safe menstrual period, the ovulation time should also be determined by accurately measuring the body temperature during the ovulation period and observing changes in secretions, so as to determine the safe menstrual period for contraceptive measures as soon as possible.

3. The safe period contraceptive method is only suitable for women with a relatively regular menstrual cycle.

4. Because women's menstrual cycle will be affected by their mood and symptoms, the failure rate of contraceptive measures based solely on the safe menstrual period is relatively high. Therefore, it is recommended to use it in conjunction with other contraceptive methods.

5. The safe period for contraception is not suitable for women whose menstrual cycle is less than 21 days and more than 35 days, as well as women who have just given birth or are breastfeeding.