Anatomy Ultrasound

Jessica
Hey ladies! I have my anatomy ultrasound this week... Finally! I've been waiting 20 weeks to find out the gender! Anyway- looking for advice... It's my understanding that knowing the gender isn't medically necessary so if the baby won't spread em, we won't be able to find out. Have anyone has experience with this? Will they schedule you for another ultrasound? Or will they make you walk around for a while? Should I drink orange juice/soda and do some jumping jacks before I go in? Thanks so much!