Best birth control not including pill or condoms?

Penny
I'm 19 and looking for advice on what would be the best birth control for me to use without using the pill, or condoms. I'm in a monogamous relationship with my boyfriend he either wears a condom or pulls out when we have sex. Last week we discovered that after we had sex the condom broke inside me before he pulled out, I guess leaving his semen inside me. Scared the crap out of me and luckily I'm on my period now. I know that condoms are a very good choice but my boyfriend hates them so much sometimes he protests. I really don't want to start going on birth control. My dr. suggested maybe FemCap, a cervical cap to be used with a spermicide gel. That seems awful to use and I've heard that some guys can actually feel it during sex. I don't know, maybe I should go on birth control, to keep things simple? Will using a spermicide gel like Gynol II alone work as birth control? I really need some good advice.😊