First Appointment?

Ann

I just got my BFP Saturday. I never had a period before the BFP. I stopped birth control, had some spotting, and got pregnant. I have no idea how far along I am. I expected my period to be 30 days after my spotting, but I wasn't sure. I got a positive almost 5 days before my period was anticipated.

Will they do tests to determine gestational age? Will they go off of my spotting as my LMP? I'm just really confused and not sure what to say when I call tomorrow morning.