Ultra Sound Tech Irritation

Dayna
Please tell me why I just went in for an ultra sound and the tech told me she had no idea why I was there and it's not normal to have an ultra sound at this time (~32 weeks) during the pregnancy unless something was wrong. After I explained my doctor scheduled it 7 weeks ago and has told me she is right on size and everything looks great with all my blood work and everything she proceeded to tell me "well then your doctor must be keeping something from you because we don't do ultrasounds at this time unless there's something wrong". Well thanks so now I'm going to send my doctor an email and try and figure out why this stupid tech would think it would be ok for her to tell me that (even if it is the truth).