I'm sorry to hear AF still hasn't arrived. I also sent you a response to your post on the Asherman's group.
I'm not sure if a hematometra (pooled blood) is able to be visualised on an ultrasound scan, however as I understand it, adhesions are not usually seen which makes AS harder to identify.
Hoping you get some answers soon, you are in the best possible hands with Prof V.
Please keep us posted xx