Should I tell my doctor??

So I’m 19 and I have my first real bf and we’ve been having sex constantly (about 3-4x a week) and I haven’t told my mom that I’ve lost my virginity. I mean I know it’s not bad but I’m just a bit worried about what she would say bc she’s super strict and she doesn’t know the guy. I feel through that since I’ve been having sex so much lately that I should tell my doctor so that he can refer me to an OBGYN to make sure that everything is fine and I also want to start taking the pill just to be safer.. idk what to do should I tell my doctor and my mom??