A month without menstruation with a history of normal sexual life, it is recommended to exclude the possibility of pregnancy, you can use the morning urine to do early pregnancy test can know whether it has been pregnant. Clinically, through the test is not pregnant, you can take oral progesterone to promote menstruation once a day, once two pills for three consecutive days, after stopping the drug three to seven days after the menstruation, progesterone orally one hour after the phenomenon may appear dizziness is best to go to bed before the oral, after stopping the drug after the eighth day has not come to the menstruation, must go to the hospital to check to exclude the possibility of organic lesions. It is recommended that women in their daily lives to develop good habits, do not smoke or drink too much, to ensure a good mood, can avoid causing endocrine disorders and cause menstrual disorders.