So my fiance and i were having sex, and twards the end of our session i started to feel a sharp pain in my lower abdomen. (mainly on the left side) I am 32 weeks and at first i thought it was Braxton Hicks, but i had read that they just feel like intense period cramps. He is 11" and im concerned that we will start up my labor if these pains continue each time we have sex. Has anyone else had this problem? If so, what is it?