doctor appointment

so i have a doctor appointment and i'm 15 and i recently lost my virginity so it'll be the first time i go being sexually active. its the first time im seeing this doctor because my old one quit and shhes the one i got assigned and i want to have a good relationship with her since i didnt with my old one. if she asks if im sexually active and i say yes do they tell my parents?? i'm really freaking out because i wan to tell her but onviously domt want my parents to know. what do i do??