Lack of an Orgasm?

I'm 19, have been on birth control for like 2 years, and have been having monogomous sex with only my boyfriend for about 2 1/2 years(we've been together for almost 3). He is also the man I lost my virginity to. Anyways, I really enjoy having sex with him lol it's amazing. However, I've only had an orgasm maybe a handful of times in our entire relationship. I've read up on it, and I already know most women need clitoral stimulation to orgasm and that I'm not alone with my problem. But, it seems like no matter what position we're in, or if there's a lot of foreplay, and stimulation, I still don't orgasm. :/ like I said I don't really mind because it's amazing anyway; I just feel like it would be better for both of us if I could. :( and it honestly makes me feel kinda bad about myself. I don't really know what exactly I'm asking lol I guess just if any of you have advice or a similar situation? 

Thanks girls. :)