has anyone determined their baby's gender by 3D/4d ultrasounds?

Jessica • I have a 3.5 year old little boy named Kyler and a 4 week old baby boy named Ryland and a 16 year old daughter named Cameron. We ttc for 1.5 years with Kyler and 9 months (including a miscarriage) with Ryland. I wasnt trying when I got pregnant at 18 with
I made an appointment to do a 3D/4d ultrasound for 15 weeks to hopefully determine my baby's gender, I understand that can be to early and I was reassured if they cannot determine it then they will reschedule free of charge to do a redo. Has anyone determined their baby's gender this way, or does/is mostly everyone waiting for their 19-20 week ultrasound?