Who do I see??

Ok so I just found out I'm pregnant. I no longer have a family dr because I moved to a new town. I was told an OB would see you from the beginning if you don't have a dr, but how do you go about that? Like would I call them, or go sit in er ? Also I have the option of a midwife. Someone just told me they never saw theirs until after 12 weeks.. maybe I'm used to my family dr where I went in right away, and then usually had a dating ultrasound by 7-8 weeks. I'll be so worried having to wait until over 12 weeks as I had previous MCs and it was nice to be able to see the heartbeat and make myself feel a little bit better!