What usually happens at the initial visit?

Annabela
So I'm 4w4d and I have my initial visit on the 29th. I'm meeting with the nurse at the practice. What usually happens at the initial visit? I'm horrible when it comes to doctors. I'm trying not to freak out and not over analyzing. 
I have fainted while taking blood and at a chiropractor visit. I'm hoping to get over my fears easily and quickly.