What should I expect at my Anatomy scan?

Claudya • Jaxon Grey`s mommy 👸🏽👶🏽💙
What should I expect at my anatomy scan? and who did you have in the room at your scan ? I want my niece to be in the room who is 7, she loves the baby but since she can't be in the room when I deliver I figured it would be nice to let her come to my scan.