I know that won't be for a few years. I'm only seventeen. I'll wait until I'm out of my parents house. Like my mother always says, "You can't sneak things around your mother. I have eyes in the back of my head."
yes you will know how, im 17 too, and though i still live at home, and i am sexually active with my bf, it has occured to me that mothers really do know everything, so if you dont want your mother to know, i really would wait until you're out of her house