1st visit is with nurse??

Brittany
Hi ladies!
My first appointment is this Friday with the nurse, and I come back after that to see the doctor. What ideally happens At a nurse visit? 
They said I'm 8 weeks along...but I think I'm only 4 weeks because I took an ovulation test in June and I thought it was positive? I didn't receive a positive pregnancy test though until last week, but I have also not used fmu until that day. Any advice??