If your period hasn’t come for a month, and you are having normal sex and not using contraception, it is recommended that you collect morning urine for an early pregnancy test. If you are not pregnant, you can take progesterone orally to induce menstruation. The specific use is: progesterone gel pills, take once a day, take two pills at a time, take three consecutive days, after stopping the drug 3-7 days will come to menstruation. Progesterone gel pills may cause dizziness, so be sure to take them orally before going to bed. If you still don’t have your period on the eighth day after stopping the pills, you must rule out the possibility of premature ovarian failure. It is recommended to go to the hospital for a blood test of sex hormone six, according to the results to understand whether the ovarian function is normal. If the ovarian function is still normal, it is recommended to observe for two more days to see if menstruation will come. In addition, it is recommended to do hot compresses on the lower abdomen, or drink a bowl of hot brown sugar and ginger water every day, which also has the effect of promoting menstruation.