Telling my mom

My mom has been asking a lot if i lost my virginity and i told her no, but she doesn’t believe me. I mean i did lose my virginity, but i dont wanna tell her. She said she was gonna take me to the doctors or call my ex-boyfriends mom to find out. So ima have to tell her, im just nervous. I wanna cry so badly because she says she’s not gonna get mad, but i know her and i know ima get my ass beat. Wish me luck