In clinical practice, the earliest symptom of pregnancy that can be detected on its own without taking any pregnancy test is menopause. In a normal menstrual cycle, if vaginal bleeding does not occur when the period is due, the period is delayed, which means menopause. If you are pregnant at this time, no other symptoms appear. The fertilized egg has not yet stabilized and the secretion of human chorionic gonadotropin is not sufficient to cause discomfort. As time goes by, the estrogen, progesterone and human chorionic gonadotropin secretion in the body will increase, and the body will start to experience some uncomfortable symptoms, which are often referred to as early pregnancy reaction, such as fatigue, weakness, breast enlargement, frequent urination, etc. In addition, nausea, headache, dizziness and emotional instability may occur. As the pregnancy week progresses, more and more symptoms will be manifested, and the symptoms of nausea and vomiting will be very obvious, and there will be anorexia and hate to smell some irritating smells. At this time, it is recommended to go to the gynecology department of the hospital to check the blood HCG value and progesterone value, and if the progesterone is low, it is necessary to give timely luteal support to preserve the pregnancy. Therefore, when menopause occurs, it is important to consider whether you are pregnant or not, even if you do not have other symptoms, you should use early pregnancy test to confirm it in time.