Not satisfied

So me and my boyfriend have been together for 5 months now and our sex life was never a problem.... until now. I haven’t been able to climax or “cum” at all for the past 2 weeks and We’ve had sex everyday. I wanna blame it on the birth control I started taking in January since that’s around when my problem started. Idk what to do. I explained it to him and he doesn’t get it. Idk what to do or what to say without bringing him down. I’ve never really used toys either so idk. Suggestions ? Opinions ?