If your period does not come on time and you have a history of sexual intercourse and do not use contraception, you must first take an early pregnancy test to rule out the possibility of pregnancy. If you are not pregnant, it is recommended to take progesterone orally to induce menstruation, once a day, two capsules once for three consecutive days, and your period will come in 3-7 days after stopping the medication. Since progesterone pills may cause dizziness in clinical practice, it is recommended to always take them orally before going to bed to avoid the occurrence of dizziness. If it is the eighth or ninth day after stopping the medication and still no menstruation, clinically it is important to exclude the possibility of premature ovarian failure. It is recommended to take a blood test for sex hormone six, mainly to understand whether the ovarian function is normal, and the clinical results will be given the necessary treatment.