4D ultrasounds and 19-20 weeks.

Sooooo hubby and I broke down and made and appointment at one of those 4D ultrasound places for this coming Monday. We were told we would have the anatomy scan at my appointment yesterday but turned out it was just a check up and Doctor said they can probably do it within the next 2 weeks. We were so set on finding out I was so upset so we decided just to go to an elective place. So I'm wondering if anyone has 19-20 week ultrasounds they would be willing to share that show the gender so we know what to look for. I'll be 19.5 when we go.