What should I do about birth control?

I’m 19, my partner (20) and me have been having sex with each other since we were 16/17.

We decided to start having raw sex in July — in which he finds it hard not to ejaculate in me or pull out. While I do really enjoy the sex — I’m not on any type of birth control. (October makes a year since I’ve been birth control free). I don’t want to get on any birth control because I feel like it compromises my health — and I’m not disciplined enough for a mini pill. Is there any prevention methods that don’t involve condoms or BC? How much of a chance do I have of getting pregnant?