The doctor didnt say but she showed me where his head was and it seemed pretty low to me. He's been head down for a couple weeks now, and i have had this sort of pain before but it seems like today it has been just horrible.
I'd guess that it's the baby's head being pressed against your pubic bone with each contraction, or when you're standing and gravity pulls the baby down.
I had that sharp pain so badly between weeks 37 and 38 that I could hardly walk.
Just remember if your contractions are 6 minutes or less apart, you are probably in labor. It won't be long now, you're almost there! :-)
it could be pressure from the babys head on your pelvic bones..did the doctor say how engaged your baby is?