Soreness and bloating in the abdomen at the beginning of pregnancy is a normal phenomenon, which may be caused by the early pregnancy reaction after pregnancy. When the progesterone starts to increase after a woman becomes pregnant, she will often experience nausea, vomiting, bloating and other digestive discomforts in the morning, which will lead to a feeling of soreness and bloating in the lower abdomen. When the uterus starts to enlarge and soften after pregnancy, women are often not used to it at first and may feel soreness in the abdomen. If the soreness is not obvious and there is no lower abdominal pain or vaginal bleeding, it can be gradually relieved with proper rest, a light diet and small, frequent meals. If the soreness is more obvious, go to the hospital for a gynecological ultrasound examination to observe whether there is a pre-eclampsia, so as to take appropriate measures to protect the fetus.