Hi and welcome lauraherbert!
I'm not in any ap groups, but you might check the Center for the Childbearing Years in Ann Arbor, if it isn't too far for you.
We are ap. We homeschool, co-sleep, breastfeed, homebirth, etc. We don't live as "naturally" as we could, but are working towards that. I have 4 kids ranging from 11-2 and one due any day now. If you have any more questions or anything let me know. I'd be glad to do what I can to help you out!