The nausea of morning sickness and the fatigue are usually gone and women feel more energetic. Any symptoms during the second trimester usually result from the increasing size of the uterus and its pressure on surrounding internal organs. Pressure on the stomach may cause indigestion and heartburn, while the pressure on the intestines and hormonal changes may cause constipation. To feel better during these middle months of pregnancy, most doctors advise their patients to eliminate large, rich and fatty meals, and encourage a diet that includes more high-fiber foods and fluids. This is because the increasing size of the uterus and high hormone levels can make digestion more difficult.
Symptoms usually become even more pronounced during the third and final trimester of pregnancy.
This is because of the increasing size of the uterus, which contains the unborn baby. Pressure on internal organs continues to result in heartburn and the increased need to urinate. All of these symptoms are normal. Access Health, Inc.