Now that we got a BFP...

When is the earliest you can see your doctor? I will be a new patient w/ the doctor I just called but the won't see me until I'm 8weeks. Is this normal? I thought they'd want to see if everything was going well earlier than that (and obviously that's my hope haha) 
​  Does it just vary by doctor? Do I need to make an appt with my general doc for a blood test and to check my hormon levels (is this even necessary?) thoughts :) thank you guys!