How long after midwife appt til scan

Kayleigh • 21 • star sign: Leo
So I had my first midwife appt Friday when I was supposedly 11w 6days and I have to wait another 2 weeks for scan Which will make me supposedly 13w 6 days I think it's attrogeous especially when my surgery has ultrasound facilities my midwife is absolutely rubbish aswell. Has everyone else had to wait similar times for a scan???