I so had that sharp pain and its something i will not forget for a very very long time... mine stuck around, coming and going for the first 3 months. I would cry from the pain. I remember sitting in the IVF clinic waiting to see the Dr at around 6 weeks..crying my eyes out in pain. He mentioned some thing may be twisted (forget what sorry) Anyways after a few ultrasounds and having a scare thinking it was ectopic the pain went away and i was able to enjoy the rest of my pregnancy.