3D/4D @ 14+6

Ashley • Momma of 5 and 1 on the way.
I've never had a 3D/4D ultrasound, we are doing it since this is the last baby... I will be going at 14wks 6days.... did anyone go that early for one and have a tough time getting gender? My Dr doesn't do it until 21 weeks so we are doing it sooner. Impatient and it's how we are letting the other kids know.