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Having intercourse during the first seven days and the last seven days after the start of period bleeding has a lower chance of conception. So that time is considered as a safe time for intercourse. However, this condition applies only to women whose periods are regularly 28 days apart (or regularly 26 to 31 days apart). In their case, if the day of menstruation is counted as the first day, ovulation occurs on the 12th to 19th day.
Eggs live for about 24 to 48 hours after ovulation, and sperm can live for 3 to 5 days after ejaculation in the female reproductive tract. So if you have intercourse between the 7th and 21st day of your period, chances of conception are high. The rest of the days of the period, from the first to the seventh and 21st days until the day the menses start again, are considered safe times for intercourse. Note that the date of onset of bleeding is calculated from the first day but above.
Note that no period day is a truly safe day. Having intercourse during the above mentioned safe times still has a small, albeit small, chance of conception. Therefore, it is better to use another method of birth control, such as a condom or the pill. Because the above calculation is not applicable for those whose periods are irregular or less than 28 days. Additionally, the possibility of sexually transmitted diseases is always present.
So this method of birth control should never be relied upon during casual intercourse or extramarital intercourse. This method is only applicable to those couples who may not want children yet, but there is no problem if they do.
Having intercourse during the first seven days and the last seven days after the start of period bleeding has a lower chance of conception. So that time is considered as a safe time for intercourse. However, this condition applies only to women whose periods are regularly 28 days apart (or regularly 26 to 31 days apart). In their case, if the day of menstruation is counted as the first day, ovulation occurs on the 12th to 19th day. Eggs live for about 24 to 48 hours after ovulation, and sperm can live for 3 to 5 days after ejaculation in the female reproductive tract.
So if you have intercourse between the 7th and 21st day of your period, chances of conception are high. The rest of the days of the period, from the first to the seventh and 21st days until the day the menses start again, are considered safe times for intercourse. Note that the date of onset of bleeding is calculated from the first day but above.
Note that no period day is a truly safe day. Having intercourse during the above mentioned safe times still has a small, albeit small, chance of conception. Therefore, it is better to use another method of birth control, such as a condom or the pill.
Because the above calculation is not applicable for those whose periods are irregular or less than 28 days. Additionally, the possibility of sexually transmitted diseases is always present. So this method of birth control should never be relied upon during casual intercourse or extramarital sex. This method is only applicable to couples who may not want children yet, but there is no problem if they do.
