I recently started a sexual relationship with a new partner. We've had sex 3 times now, and i've noticed that after each time, for a day or 2 that I will have light spotting. I know from being pregnant in the past that I have a thin cervix, but my ex husband is bigger than my new boyfriend, and I never had this problem with him. The sex now is very intense and crazier that ive ever had, but I just wonder if anyone may know the reason this may be happening. Thanx in advance.