If the pain is not particularly severe, but only a slight tingling or swelling sensation, this is a physiological manifestation of a vague stomach pain at 9 weeks of pregnancy. This is because after pregnancy, a slight stomach discomfort can occur due to the influence of hormonal secretion. During this period, as the fetus grows, the uterus also increases in size, and this time also shows a slight tingling sensation, which is normal. During this period, try not to overexert yourself and do not exercise strenuously, because in the first three months of pregnancy, the fetus is not fully developed and the placenta is not particularly stable, so it is easy to miscarry if you exercise too much at this time. During this period, you also need to pay attention to keep your mood relaxed and not too nervous, if the stress is too much, it will also stimulate the uterus and may cause a miscarriage.