In addition to menopause, early pregnancy reactions such as nausea, vomiting, dizziness, fatigue, drowsiness, anorexia, greasy food, etc., may occur. If you want to know whether you are pregnant or not during the preparation period, you can buy a pregnancy test and use the first urine test when you wake up in the morning for more than 10 days after intercourse or if your menstrual cycle is normally regular but your period is delayed for more than a week. You can also go to the hospital to have your serum level of human chorionic gonadotropin tested, which is more accurate. If you have headache symptoms, it is best to seek medical examination in time to rule out the possibility of cerebrovascular disease, high mental stress, cold and other factors.