waiting for ultrasound

Tiffany
My boyfriend and I had our 5 day FET on 8/19/16. We had two blood test both indicating that levels of pregnancy. We have an ultrasound scheduled for 9/16/16. What should we hope to see on 9/16 in the unltrasound?
What's the likelihood that I'm not pregnant ? 
Anyone know.... And I haven't used a HPT. Should I?