If your period is delayed for more than a week, and you have sex without contraception, it is best to rule out the possibility of unwanted pregnancy first, because if you are pregnant, you can’t get your period by taking progesterone, which is a kind of medication to preserve the fetus. If you completely exclude pregnancy, you can come to the hospital to do ultrasound to see the uterus, adnexa, if the thickness of the endometrium is moderate, you can eat progesterone to promote menstruation, 200mg a day, eat for five consecutive days, eat the drug during the process of a normal menstruation is generally to stop the drug. If you have not had your period after taking the drug for 5 days, you can wait for 10 days, and if you have not had your period for 10 days, you should come to the hospital. If the menstruation is often delayed or does not come, usually the third day of menstruation to fasting blood test endocrine six, to see if there is polycystic ovary syndrome endocrine disease.