The first situation, two months pregnant belly a little pain, if there is vaginal bleeding is generally considered to be the possibility of preterm miscarriage. Need to go to the hospital to do gynecological ultrasound to see whether there is intrauterine bleeding or the gestational sac downward displacement and other abnormalities. In the second case, we can not rule out the embryo in the uterine cavity is well developed, due to the enlargement of the uterus and the abdominal distension and pain of the temporary discomfort phenomenon, usually pay attention to the appropriate rest can be gradually relieved. The third situation, due to the consumption of unclean diet or eat too cold, acidic food, can also lead to lower abdominal pain. When the phenomenon of stomach pain in the second trimester of pregnancy must attract enough attention, as early as possible to adopt the appropriate symptomatic treatment, so as not to affect the growth and development of the fetus.