Are you talking about pregnancy cramps? If yes, then that is a very common symptom of pregnancy and one of the early signs too. Take a heating pad and put it on your tummy, make sure it is not very hot, but warm and try to sooth the pain. You can also use electric heat pads or disposal heating pads such as therma care.
A warm bath (not hot) may relieve cramping. It may take some of the weight off your ligaments and the heat may relax your muscles and ligaments.