Hidden pain in the stomach at 37 weeks of pregnancy is usually caused by the enlargement of the fetus, which presses on the pelvic organs and squeezes the surrounding area causing pain at the lower edge of the ribs or touching the pubic symphysis. This kind of pain is usually not particularly serious, and there is no uterine contraction, which is a physiological manifestation. Ligament pain caused by the growing uterus, or when the fetus enters the pelvis at 37 weeks, it will press on the pelvis and organs nearby, which may also cause mild pain. This kind of pain is physiological pain, usually pay attention to rest, do not strenuous exercise. If you feel the pain is more obvious, you can gently massage, promote blood circulation, can reduce the occurrence of pain.