I am in my mid 20's, have been on birth control for 10 years and am STD free, but I do have a tilted uterus. I have had my fair share of partners in a wide range of sizes, and in the past I have had problems with pain associated with having too large of a partner hitting my cervix. On three occasions several years ago, I have had a stabbing abdominal pain after sex that caused me to vomit and lose conciousness. The cause of these episodes were never figured out.
I don't think that this is the problem I am having now, as my current partner is average in size. The problem I am having is that in certain sexual positions (such as me on top), I can feel and hear a 'clunk' inside of me. My partner is also able to feel and hear it, and says he has never experienced that before. I do feel a very dull pain when this happens, but it hasn't been enough to make me worry. This doesn't happen every time, which makes me think it isn't related to his size or my 'petit' build.
Last night during intercourse, the 'clunk' was especially uncomfortable, and was also causing me to pass gas. After changing to a more comfortable position, The 'clunk' went away but I continued to have a dull soreness in my abdomen. This morning I awoke to some fresh blood (very red and thin, not the consistency of menstrual blood) and very uncomfortable cramps. The bleeding and cramps have continued throughout the day.
I am very worried about what this may be. I hope you will be able to provide me with an answer.