Hi,
My son was dx'd with PDD-NOS at 2 1/2. I knew something was wrong before that. He is almost 4 now. It will not become an aspie dx until he is older.
Is speech the only eval he is going to get? If you have a developmental pediatrician in your neighborhood, getting an eval from them can be very helpful, not only for you to tell you what you can do to help, but also to help you get services that your son needs.
Just to give you an idea of what services he may qualify for when you have his IEP meeting, if he is on the spectrum, my son gets:
From the school dist:
OT 2 hrs a week, one hour in class and one hour in gym
Adaptive PE 30 mins a week
Speech 30 mins a week- working on social language, conversation, pragmatics
Special ed preschool collaborative class, which mixes with a reg pre-Kinder class 2 1/2 hrs a day
Summer school