Gender Scan

Heather • Hi! I'm Heather. I'm pregnant with my 1st child. Due 03/2016!
Has anyone gotten a 3D/4D ultrasound at 17 weeks to determine gender? My doctor wouldn't tell me what I'm having so I've decided to pay for one. I'm just wondering if I can do anything to make my baby active during the ultrasound so it's not sleeping or hiding?