If the patient is in a state of pregnancy preparation or does not require pregnancy, but does not use contraception, and does not have a normal period, but has only a small amount of vaginal brown discharge, the possibility of pregnancy cannot be ruled out. In case of preterm miscarriage or ectopic pregnancy, a small amount of vaginal bleeding can occur, and the patient is often accompanied by discomfort from the lower abdomen or pain and discomfort on one side of the abdomen. It is important to pay attention to this situation. You can test the urine pregnancy test with morning urine or go to the hospital to check the blood chorionic gonadotropin or progesterone to determine if you are pregnant in the first place. After pregnancy, ultrasound can be done to determine whether the pregnancy is intrauterine or ectopic, and depending on the test results, treatment can be chosen from birth control; or in the case of ectopic pregnancy, conservative treatment with medication and surgery.