Growth scan todsay

I’m 36w5d currently and am going in for a growth scan since my last at 19w. Was supposed to go in for this scan 3 something weeks ago, but the lady stuffed me around (she wasn’t listening to me at all).

Did you ladies ever have one of these scans around these dates? What happened? What can I expect from this appointment?

Last scan baby was measured perfectly, except his arms/legs were 2 weeks ahead. My partner is 6ft and I’m 4’12”, so this was something to expect.