Where to get Birth Control

So I'm 21. And I have chronic overbearing parents. I live at home still just to save up for a house. Wondering if there was a way to get birthcontrol without having to worry about my mom finding out. We are on the same insurance. She will be ballistic if she finds out as she has scrutinized me for it before. * Sidenote* I know I'm an adult and more than capable to just move out and do what I want. However, I am already sick and tired getting into it with my mother in the first place.