Although adolescent women have sex, but did not get pregnant, appeared menstruation two months did not come, may be the ovarian gonadal axis is not yet perfect development caused by the performance. You can wait for another month, if there is still no menstruation, you need to go to the hospital to check the ultrasound to see the specific thickness of the uterine lining, according to the results of the consideration of the need to take progesterone capsules to promote menstruation treatment. Women of childbearing age often do not have menstruation for two months, in the exclusion of pregnancy, may also be caused by ovarian endocrine disorders, not only need to check the ultrasound, but also need to check the hormone six to see the specific situation of the ovarian endocrine. If you have polycystic ovary syndrome, you need to take estrogen-progestin combination preparation to regulate.