Birth control

Me and my boyfriend enjoy having raw sex together , even thou he’s good at pulling out I’m scared one day he would cum in me so I’m trying to prevent that and I really want to get on birth control but like I’m scared don’t wanna go to my doctor and be like ( been going to them since small) hey I’m having sex now I wanna get on birth control lol , idk that’s just me and I definitely don’t want my mom finding out. So idk what to do or who to trust , where to get it from. Any suggestions advice would be helpful . Thanks