Ok so I'm 20 years old keep in mind my boyfriends penis is very large like the size of an average girls wrist well when we have sex I have a sharp unbearable pain on the left side of my cervix only when he first penitrates and after a few thrusts it goes away it also hurts in the same spot after we are done to. I was wondering if anyone else has had or does have this same thing happen to them I went to the dr and she took a look and said that everything looks fine and I don't have any stds or anything so that's not the problem can anyone tell me anything?