Mishy, I, too live in WI. I work with kids with Autism. I work for Racine Unified. Anyway, have you had your son worked with at UWM? They are doing some kind of study and a few of the kids in our class have gone there.
My 6 yr. old great-nephew was recently diagnosed in the spectrum too.
Know that there are many people out here who support you. Irene