Losing virginity

I'm 16 almost 17 okay. I Remeber a few months ago my mom wa playing around and asked has anyone pollinated my flower (had sex with me) . I said no and laughed . With that being said I have had sex 2 times with 2 different people . So I'm not a Virgin . I don't know how I should tell her. I also am in a long distance relationship and when I see my boyfriend I plan on getting some , and want to take birth control . Help !! What do I tell her ?