genetic testing

How many of you had the genetic testing by 13 weeks. Plus also had the panorama prenatal screening. 
During our ultrasound the tech was almost positive it was a boy. I was wondering with having the bloodwork was the tech right or did it end up different with the bloodwork. 
BUT please don't get me wrong all we want is healthy but we have 3 boys and I ovulated later then we BD so we were hoping a girl.