Yes, Ladies, I need to discuss this because it is concerning me. After having an orgasm last week, I had very, very strong BH for about 2 days following. I am only 18 weeks! Last Friday I called the MW and she set me up for an apt. this Monday morning. After 2 days the BH went away, I could feel movement so I decided not to be too worried. I canceled my apt. this morning b/c I was not having the problem. I am aware, besides for the obvious O, the BH could be infection related, which I don't think I have. I am very concerned that I reacted so strongly to having an O! Is this in anyone else's experience? On a background note, for my first pregnancy, I had strong BH throughout the second half, but made it to term. I am currently still nursing DS, and don't want to be told to stop. But should I be more alarmed about having strong BH, and should I avoid sex all together: ? Could I be at risk for preterm labor?