What's the difference?!

Amber

My OB office and the office that does ultrasounds is separate (but in the same building). Tomorrow I have an anatomy scan with the OB in their office, and they scheduled a gender scan the next day at the ultrasound office too... is there any reason they cant just tell me gender in the anatomy scan? Like... I feel like sex organs are a fairly important part of ANATOMY.? Or am I just crazy and need to go to both?!