A throbbing stomach can be a sign of pregnancy, and there are a variety of reactions that can occur after pregnancy because as the uterus slowly grows after pregnancy, it pulls on the surrounding tissues and ligaments. That’s why some women experience lower abdominal cramping as well as discomfort in the lower back after pregnancy, and others feel their lower abdomen throbbing. More than half of the women will experience a variety of early pregnancy reactions around six weeks of pregnancy, which can include weakness, drowsiness, dizziness, nausea, vomiting, and a preference for food that is more acidic and dislikes more greasy foods. But we can’t rely on this early pregnancy reaction alone to judge that we are pregnant, the easiest way to detect whether you are pregnant or not, is to use the early pregnancy test paper to test the morning urine. If there are two red bars, it proves that you are pregnant, or you can choose to go to the hospital for a blood HCG test. However, a positive blood and urine test result only proves that you are pregnant, and if you want to determine whether it is an intrauterine pregnancy, you need to do an ultrasound.