Please don't ignore. I need your help guys on how to protect myself from unintended pregnancy!

I am 18 years old and I am with my boyfriend for 3 Years now. We love each other like crazy and want to make love without being scared of getting me pregnant. I tried the pill already but it messed up my hold face with boils!!! Can you please suggest some good ways to protect myself? I don't know much about birth control. Kindly help please.