I am thirty eight weeks and my bump has been hard for hoursata time for the past two days. I havehadlower back pain and sommelier abdo pain coming and going. It's hard to tell if it's labour as it is not regular and I have pelvic girdle too. I went for a walk-on Sunday andgothorriblehot zizzy pain in lower quadrant but thought it was from walking as eased up next day. Called hospital and they said if it was sinister e.g. Placentalabruption would be terrible constant pain. What is it?