birth control...

I have been on some form of birth control since I was 11 because of dysfunctional bleeding. I tried the pill, but the typical dosage made me sick for weeks and a lower dose didn't work at all. I tried the depo shot for a few years, but I still found myself bleeding when I shouldn't have and also gained about 40 pounds..... After that, I tried the patch which actually worked well, and then went off of it after about a year to see if I actually had regular periods; that was in February 2016 and I didn't have a period until around October 2016, which is I guess to be expected after coming off of birth control. The period in October seemed regular, but I haven't had one since. I also decided to go off of it because I didn't think I would have sex until I could legally make my own medical decisions, not because I wanted to wait or anything, I just wasn't interested in dating anyone. Since February, I've met this really really great guy and I really want to sleep with him, I'm just not sure what I should do, I do plan on using a condom but they can only do so much, I'm only 16 so I can't exactly go get a prescription on my own. I know he'll wait with me and will not pressure me into anything, I just want to make sure we are as safe as possible. Any thoughts?