Are condoms enough?

My boyfriend and I was to have sex but I'm a little scared because I really can't get pregnant right now. I'm 17 and I just was wondering if condoms are enough for contraception. I know the whole abstinence is the only 100% method but I can't live my life like that. My sex Ed class was not thorough at all so they kind of washed over contraceptives and just talked about why we should not have sex. Real life ain't like that so I have to ask you ladies if you think it's enough or even your personal experience if possible. As long as there's no holes or tears I should be good right? Or should I go on the pill as well to be safe? I'm a little confused and really hate the fact I never learned about these kinds of things in school.