The period just gone belongs to the physiological safety period. For women with regular menstrual cycles, the physiological safe period is within a week before the menstrual period is about to come or within a week after the period has just left. During the period when the menstrual period has just left, the follicles are not developed and no mature follicles have been expelled, so the chance of pregnancy is low. Within one week of the menstrual period, because the follicles have already been discharged, the period just before the menstrual period or the period just before the menstrual period, is a physiological safe period, and most women take safe intercourse for contraception, so the chance of pregnancy is relatively low. However, the physiological safety period is not absolutely safe, sometimes women may have extra ovulation, so there is also a chance of pregnancy. If you don’t want to have children, it’s better to take a more scientific and effective contraceptive method to avoid unintended pregnancies that can cause harm to a woman’s body.