first doc visit

La
So I got my bfp 4 days ago and I am 4-5 weeks preggy. Due date jam 16-22. 
I don't have a doctor where I live and I have to find one. As well as pay per visit.
So when should I go? Is it urgent to go now to check all is fine or all they can do is confirm in pregnant? (which I know)
Not sure if I should research well and go at week 9? When it's necessary to get an ultrasound or if I should just go to any asap and then do the research before my first needed visit?