I am 30 weeks pregnant, baby is measuring 33 weeks now. The last couple weeks I have had a sharp pain in my upper left buttcheek, thought it was sciatica, because I have had that before, but it seems to be worse when I pick my leg up to take a step or bend over. There is no pain in my leg which makes me think now it is not my sciatic nerve. I am 28, 245 lbs, 5 8 .