How to deal with ob/gyn doctor judging you?

I went to my ob/gyn for the first time today because I wanted to get the depo shot as birth control. I'm only 16, I've never had sex but IF I do I want to be protected. I spoke to my mom and we both agreed it was the right thing to do. The doctor asked me questions and she didn't like what I answered like how long my bf and I have been together, why I want the shot, etc. My doctor and nurses were talking about me in the hall in front of other patients. She made it know to the world what I went for and my age. Isn't that against the law? I really feel she was judging me.