If the pain is not particularly obvious, if there is no tightness or hardness in the stomach during the pain, and if the symptoms do not persist without relief or form a rhythm, it is a normal manifestation. In the process of pregnancy, the endocrine influence leads to an increase in estrogen and progesterone, which can lead to ligament relaxation, back pain and lumbago. In the process of fetal growth, the uterus also increases in size, so it shows vague pain and tingling sensation, which is physiological and does not require special treatment. If you feel the pain in your belly is obvious, and there is a paroxysmal increase, consider the possibility of preterm abortion or preterm labor. You should go to the hospital in time for an ultrasound examination to determine the condition and then use symptomatic treatment to preserve the fetus according to the month of pregnancy.