1st ob visit?

Tiffany • About to get divorced with two children and prego with baby #3 eta 6/17/15
Ok so I'm on baby #3 and its been awhile. What do they do on your 1st ob visit? Will I get a sono? I'll be a little over 8 weeks along and I'd like to make sure heart rate and everything look good. I'm just a little worried?