So nervous and it's still 3 weeks away

I have to go to a high risk dr because of my age *eyeroll* where I have to have a 3D u/s and genetic testing.   I really don't want the genetic testing, I declined it at my first apt and am really against any tests that aren't really necessary.   It's seriously making me sick since they called to schedule it today.  My dr just told me I have to have a 3D u/s, but now this place also said I have to have genetic testing.  Part of me hopes that my insurance won't cover the testing, just the u/s.