M.P.
You may be able to get assistance from the Multnomah or Washington County Intermediate Service District, which ever one in which you reside. Federal law mandates that all children be helped so that they can succeed in school.
My daughter took my grandson there when he was near 4 and learned that they could've offered more services if she'd applied earlier. My grandson has delayed speech development and may be high functioning autistic. Multnomah County's policy is to not diagnose Autisim spectrum disorder this early. He is the right age for kindergarten this fall but will probably attend a therapeutic kindergarten. He's been attending a therapeutic preschool, paid for by the state.