birth control without my mom finding out

im having sex and want to be on the safe side and get birth control because my partner and i don’t like using condoms but at the same time i don’t want to speak to my mother about it because i’m scared and i just don’t want to because then she will start asking a bunch of questions like who i’m being active with because i don’t have a boyfriend and i just don’t know what to do but i don’t want to get pregnant. please help me with your opinions on my situation