Low back pain is not necessarily a phenomenon of new conception, however, there are symptoms of low back pain in early pregnancy. Originally should have menstruation, the pelvic cavity is in a state of congestion, often appear premenstrual lower abdominal distension and lower back pain symptoms, now pregnant, the pelvic blood supply for the early development of the embryo to provide nutrients, and lead to premenstrual discomfort symptoms continue. The first symptom of pregnancy is menopause. In the early stages, because the fertilized egg has not yet stabilized in its bed, the secretion of human chorionic gonadotropin (HCG) is insufficient and does not cause discomfort. With the extension of time, the body secretion of estrogen, progesterone, human chorionic gonadotropin rise, the body began to appear some uncomfortable symptoms. That is, what we often call early pregnancy reaction, there will be fatigue, fatigue, breast swelling and pain, frequent urination and other symptoms, in addition to nausea, headache, lumbago, dizziness, emotional instability and so on. As the weeks of pregnancy progress, more and more symptoms are manifested. It is normal to have back pain symptoms in early pregnancy. In late pregnancy, due to the hormonal effects of joint ligament laxity, the uterus increases in size, pressing the pelvic tissues and nerves, the center of gravity of the body shifts backward, and the pregnant woman, in order to adapt to the balance of the body posture, her waist protrudes forward, and the symptoms of lumbar acidity and lumbago can also occur. Therefore, once there is a history of menopause, the symptoms of low back pain, similar to the symptoms of premenstrual period, may be pregnant, can draw blood tests blood HCG, or test urine pregnancy test, as well as early determination of pregnancy. If the symptoms of back pain worsen compared to premenstrual symptoms, you should seek medical attention.