About two weeks before labor, the fundus of the uterus will descend. At this time, the upper abdomen will feel relaxed, breathing will become more comfortable than before, the discomfort of stomach pressure will be greatly relieved, and appetite will also increase. Some. There is a feeling of pressure in the lower abdomen. Because the fundus of the uterus sinks, the first part exposed during delivery has fallen to the pelvic opening, so the lower abdomen is distended and the bladder is under pressure. At this time you will feel soreness in your back and legs,