Birth control pros and cons

I have never been on birth control, and I recently moved in with my bf and if any ladies out there understand we are having lots of sex so theres condom wrappers all over the room and we are spending $ buying condoms every week. I have heard good/bad things about birth control and I cannot make uo my mind. Does anyone know any pros and cons about birth control? Which is better? What I need to know before starting?