orgasm

I have a serious question... idk if I'm the only one but please tell me....

So every time my bf & I have sex I will not have an orgasm unlesssss he does oral sex on me.... My friends say the have orgasms every time they have sex & im just like howwww??? I Even thought about my past relationships with a different partner & I really I never had an orgasm without oral sex.... NOW TELL ME AM I THE ONLY ONE THIS HAPPENS TO???