Persistent stomach bloating at 39 weeks of pregnancy is not necessarily due to labor. Most of them are caused by the head of the fetus squeezing the birth canal and the surrounding tissues caused by distension, which is a normal phenomenon. If the fetus is in the pelvis in 39 weeks of pregnancy, there will be the phenomenon of pubic bone separation, accompanied by physealgia pain compressing the tissues and affecting blood circulation, and at the same time, the pregnant woman will also suffer from swelling and pain in the perineum, and even edema in the lower limbs and ankles. So 39 weeks pregnant stomach persistent swelling, to consider the contractions or fetal head extrusion caused by the birth canal, do not worry too much. Each pregnant woman’s situation is different, and her physical condition is also different. If the phenomenon of persistent swelling occurs, you can go to the hospital to do the relevant examination, and observe whether there are prenatal precursor symptoms.