Appointment tomorrow

Tanja • My husband & I are so excited for our sixth child. Our kids are 16,15,12, 4(the boys) daughter is 5!
So I have another ultra sound appointment tomorrow. At my 20 week anatomy scan the baby was moving around a little too much. So the tech didn't get all the measurements. She did say baby was/is a girl although I am so nervous and worried that tomorrow we will be told differently. 
This is baby number six for us. We have four sons (16,15,13 & 4 yrs old) and our only daughter is 5 years old. 
This is the ultrasound from the 20 week scan.