Is the menstrual period a safe period?

Menstruation is generally considered a safe period, and pregnancy is unlikely to occur even if sexual intercourse takes place. However, during menstruation, the endometrial lining is shedding and blood vessels are open, making it easy for sexual intercourse to cause endometriosis or endometritis. Therefore, even if one has the desire, intercourse should be avoided during this time. The relatively safe period usually falls about two to three days before and after menstruation, but relying on the safe period for contraception is not recommended, as there is no absolutely safe period. Using the safe period as a method of birth control often leads to unintended pregnancies, because ovulation can be influenced by various factors such as mood, climate, and changes in geographical location. Therefore, it's important to use proper contraceptive methods to prevent unintended pregnancy.