The term “vacation” is generally used to refer to a woman’s menstrual period, and you can’t get pregnant if you have intercourse when you’re about to have your period, but it’s not absolute, and there’s also a possibility of pregnancy for women who have a disrupted menstrual cycle or whose periods are delayed due to staying up all night.
The day of ovulation is usually 14 days before the next menstrual period, and after ovulation the egg usually survives in the body for about 1~3 days, so the possibility of pregnancy before the onset of menstruation is relatively small.
But for some of the menstrual cycle disorders or recent mood swings, late night and other factors lead to delayed menstruation of women, due to hormone level disorders, there may be abnormal ovulation, if this time coitus will have the possibility of pregnancy.
Safe period contraception is not a foolproof contraceptive method, it is generally recommended to choose condom contraception, for some women who have already given birth or do not have childbearing requirements can choose birth control ring contraception. For more information, please consult your doctor.