What will the gyno tell my parents?

I'm 17 and have been having sex with my boyfriend for about a year. It's a really big deal to my mom, I'm her last child and she looks at me like a baby. She doesn't want me to be having sex. She's started to assume that we have been and scheduled me a gyno appointment. I know my mom will ask the gyno if I'm a virgin. Can she tell her if I am or not? And if not, will the gyno run any kind of std tests that my mom would be able to figure out that I'm not a virgin?