A few days before and after menstruation is the safe period.

The question of which days are safe around the menstrual period mainly depends on whether a woman's menstrual cycle is regular. If a woman has a normal menstrual cycle, the seven days before her menstrual period begins and the seven days after her period ends are generally not within the ovulation period, so the chance of becoming pregnant during sexual intercourse in these periods is relatively low. However, this does not mean that pregnancy is absolutely impossible during these times, as a woman's ovulation can be influenced by multiple factors and may occur earlier or later than expected. For women with irregular menstrual cycles, determining the safe period is even more difficult. Since it is not possible to accurately predict when the next menstrual period will begin, it is also difficult to accurately determine the safe period. It is important to note that the so-called "safe period" is not absolutely safe. If pregnancy is to be avoided, it is recommended to use reliable contraceptive methods.