If you have just been pregnant, if you feel uncomfortable in your stomach, it is mostly due to the following reasons. 1, if you are just pregnant, if you have not been diagnosed with intrauterine pregnancy, you should be highly alert to whether it is an ectopic pregnancy, you should check the ultrasound, in addition, you should also take a blood test for HCG and progesterone to exclude ectopic pregnancy. 2, pre-eclampsia, if the progesterone level is low, it is easy to have uterine contractions, easy to have pre-eclampsia, abdominal discomfort, some women may also have symptoms such as vaginal redness and lumbar swelling. If the symptoms of lower abdominal discomfort are not very serious, it is considered to be caused by an enlarged uterus and tension in the ligaments, which is not a big problem.