Think it's too late to change Doctors?

Group
Today I had my OB check up. My Docotor came in the room and right off the bat called me by someone else's name. I told her. That isn't me. She looked at me and laughed as if I was joking. My husband and I looked at each other like what the heck, ya know? She proceeds with reading this persons test results and personal information out to us. I interrupt her again saying that's not me. I am due August 31st and I'm much further along than 17 weeks. She rambles words, not making any sense and stated it takes 365 days to create a baby. My husband and I both in confusion with what she was speaking about. She changed her mind and said it was 200 (something) days instead. For the third time I state my name and tell her that I am not the person she is reading results from. She than goes what? I say you have the wrong person. She says she's sorry and changes the profile and continues as if nothing had happened. I tried to brush this experience off but I am feeling very uneasy about this pregnancy and she ain't making it easy. She also stated to me that "first time moms know nothing of their body". I got a little offended but I again tried not to take it to heart because this is my first pregnancy and I don't really know what she means by it. I have 10 weeks left and she won't be the one to deliver my baby so I feel like I'm in the safe zone of her handling my baby. However, now I feel like all my test results are wrong and am over worrying she told me wrong info. How would everyone else go about this situation?