An Ultrasound???

Faith • Married
I had a follow up gyno appointment today. I had the duck bill and the hands along with a routine PT. doctor tells me that with my blood sugar being so high it can cause birth defects. And then when I went to leave and schedule another follow up, I was told I'd be scheduled for an ultrasound in three weeks. AF due today and she's not here. Two PT at home both negative. Any reason this could be happening?