For the vast majority of women, not getting your period on time is a big hassle. We are all very busy with work and school, and it takes a long time to wait for a doctor’s appointment, and you need to make an appointment and wait in line for a test. So, today we are going to talk about how to make a preliminary judgment on your own before going to the doctor about what is wrong and whether you need to go to the doctor immediately or you can wait. 1. Calculate how long has it been since I had my period? First, remember approximately how many days you have not had your period. The count starts from the first day of your last period. Generally, if you have not had a period for a month and a half to 2 months, it is time to pay attention. Then, you should know if you have had sex, or at least if you have had sex since your last period. I have come across teenage girls who have been pregnant for 4 months and are still completely unaware of it. 2. Have sex to see if you are pregnant? If you have had sex, then you need to go downstairs to the pharmacy and buy a morning and afternoon pregnancy test strip and test your own urine to see if you are pregnant. If you are pregnant, then you need to find a time to go to the hospital to determine when you are pregnant (because your periods are irregular, a blood test for beta-HCG, or the size of the gestational sac measured by ultrasound, or even the length of the germ can help calculate the time of pregnancy, as well as to rule out ectopic pregnancy (this is something you need to do with every pregnancy!). The doctor will also give you an appointment for your next delivery. If you are sure you can’t keep the baby (be careful before making this decision, and even more careful if you are already married, knowing that sometimes there is no set order for career, house, car and baby), then please go to the hospital as soon as possible the next day or the third day to confirm with your doctor how to proceed. 3.Not pregnant, what should I do? If you are not pregnant, or not having sex, and have not had your period for more than 2 months, then you need to find time in the near future (no emergency, no immediate, when you have time) and go to the hospital. You want to find out the cause, then the doctor will schedule a blood test for the six sex hormones (note, this is the six: FSH, LH, estradiol, progesterone, testosterone, and prolactin), plus a TSH (thyroid stimulating hormone). If you have never had an ultrasound, your doctor will schedule one to check if your uterus and ovaries are normal. If you have had one recently, you can skip it. Also the doctor will prescribe: progesterone. For women who have not had sex at all, or are convinced that there is no possibility of pregnancy at all, you can use the cheaper medicine, progesterone enanthate, 8-10mg per day, tonics, orally for 5 days; if you are not sure if you will get pregnant, we recommend progesterone capsules, 200mg per day, tonics, orally for 5 days. Stop the medication and wait for your period to come. For the record, many patients say they read on the internet that progesterone has a dependency and they are afraid to use it, this concept is not true! The important thing to say three times, progesterone more use has dependence is not right, progesterone more use has dependence is not right! If you draw blood to check the hormones, while waiting for the results of the blood draw. Then determine the cause of the disease.