I'm currently 24 weeks pregnant. Over the last few weeks I've had a few twinges across my pelvis, that I can only describe as feeling like toothache in my pelvis. It was fairly short lived, but was triggered when going from sitting to standing quickly (I think). I woke this morning with back pain and all day have had pain across my lower back which seems to have moved to my hip. Its a dull ache with the odd twinge. Does this sound like the start of SPD?