Can't Orgasm

Hi I'm 16 and I've been with my very loving and supportive boyfriend for over 6 months. I love having sex with him it feels wonderful, but I've never had an orgasm! We've tried everyone and it just isn't happening. Recently he's been ejaculating really fast, sometimes under 2 minutes. I'm not sure how we can change this or is it normal? I don't mind but I think he feels a bit embarrassed so any help would be appreciated. Thank you!