SaraBell, I do hope you have found the Facebook group, as that is more active than this board.
I wish I could help in the search for a new OBGYN. My midwife just up and left a few months ago and now the doctor has retired. I am in search of a new one as well. I do have to say I've heard really good things from Circle of Life women's center. They are very popular, so you have to book pretty far in advance.
As far as prenatal fitness classes, there are a ton at a lot of gyms in the area, but I'm not sure about anything else privately.
Good luck! You may have better luck asking this question on our Facebook page as well.