i woke up at 3:10am this morning and had what felt like really bad cramp in my back and stomach! my stomach and back felt rock hard and it was one of worst pains iv ever felt. im 37+3. iv not had another pain since...could this have been a contraction?? its my first baby so not got a clue?? am i in slow labour?? my waters havnt broke and i havnt had a show yet!