T., My grandson is 3 1/2 and has been diagnosed with speech ataxia which means, as I understand it, to mean that his facial muscles don't get the message from his brain to form words. There may be something to do also with the way he uses the muscles because one of the things that they noticed is that he usually held his tongue between his lips. I don't know if this related but he also sucks on his tongue as if nursing.
Because my grandson had a hx of late talkers in his father's family and because the pediatrician seemed to only be mildly concerned my daughter didn't have an evaluation until he was 3 and still only had a vocabulary of about 1-2 dozen words. He was evaluated by a department within the couunty Education Service District.
As Holly said the evaluation and treatment is free and some of the services are reduced at age 3 1/2. We also learned that evaluation and treatment is mandated by law and so getting it done was easy. And the professional people have been wonderful.
He received speech therapy at home until this fall when he was placed in a Head Start classroom so that he could continue to receive speech therapy.
We very much wish we had had him evaluated much earlier. He is learning to talk but he can't talk with his classmates.
By the time he got to Headstart he had become so frustrated and angry that they are now considering that he may have a behavoral disorder. He has always been a happy, outgoing chidl but also strong willed. He began to become oppositional and defiant and this markedly increased in the classroom.
If he had been evaluated earlier his speech therapy would be easier and he probably wouldn't be having behavior issues. Therefore I strongly recommend that you go to the Education Service District and arrange for an evaluation. If he's just slow in learning to talk you will be relieved. If he needs help learning, you can get this started early enough for it to be easier for you and him and to better ensure that he will be ready for sucess in elementary school.
The idea of a speech disorder is quite scary. I am encouraged by his progress and can see that earlier diagnosis and treatment would have been much better than waiting to see.