I can't orgasm!

I can't orgasm during sex!!! No matter what my partner or I do I just can't orgasm. When I'm alone I can O from only clitoral but nothing seems to work during sex. 
So yeah, it feels like I have to pee when he's penetrating me in the right spot but I just can't relax :( any tips? 
EDIT: I can't even orgasm from fingering or oral! I can't orgasm with a partner it seems