High risk concerns

Destiny • Currently downloading est completion October 2016❤️
So I just scheduled my first prenatal appointment which is March 14th (8wks) that's perfectly fine but my first ultrasound wouldn't be until 12 weeks my concern is I'm classified as high risk due to my diabetes. From my understanding I thought I'd get an ultrasound before a typical low risk pregnancy? Thanks for any input/advice☺️