Ultrasound/ genetic counseling appt

Meredith • baby #2 on the way!
So I got a weird phone call today, well a message. I got a call for an appointment for Monday for an ultrasound and genetic counseling. I did not make this appointment and, of course, it is Friday night so I can't call the place or my doctors office till Monday. I am kind of freaking out. I just had my anatomy scan last week and everything was fine, at least I thought it was. Would my doctor make an appointment like this without informing me?! Could it be a mistake?