I'm so gald to hear things are going better and he's starting to use words.
You'd be surprised at how kids can catch up. J was 2 years delayed in speech (and other areas) when he came home. But here we are 2 years later and he isn't in speech therapy anymore. He still has a slight lisp, but that's pretty common at his age. early intervention is the key. You're little guy will get there.
Blessings,
Jenny