BIRTH CONTROL!!!

Alyssa
So me and my boyfriend have been dating for a little over 3 months. We talk about the future a lot and we both love each other very much. Anyways we want to have sex after I turn 16 which will be in a little less than a year. I really want my first time(his too) to be without a condom so I need to start talking with my mom about birth control. I don't want her to freak out though but I think she is ok it. How should I tell her/ask her about starting birth control and having sex? Xo