My boyfriends fav. Position is me being on top, and he likes it to be when I am sitting all the way up while he is in me. But whenever we have sex with me on top afterwards I get these cramps similar to period cramps. Whenever I sit all the way up it hurts like deep in my vagina like he is hitting my uterus or something. I am worried because I don't know if this is normal. I am 22 and we have been having sex regularly for about 3 years, he ranges from 6 to 8 inches whenever we are having sex. How far up is the uterus?

And one more question, all the time we have been together as far as I know I have never achieved orgasm. Its gotten to where after we have sex and he orgasms he moves to finger me to help me finish, but most of the time that just gets to... I don't know what word to use... intense and I push him away. Because if I don't then I will get this weird, twitchy, annoying, just bad feeling down there that will last for awhile. It almost makes me what to cry when I get that feeling.

What is going on? I feel like I am broken :(