Hi N.,
Unfortunately, I think the lack of therapists across the board is just the nature of the beast right now. We went through the Early Intervention program for a slight speech delay with our son last summer. We were waiting for a speech therapist for approximately 2.5 months. When we finally got one, she was a speech therapist-in-training. She was also rather flakey -- cancelling at the last minute, not calling back to reschedule. We were offered the option of taking our son to therapy sessions at La Rabida, but couldn't do it with our schedules.
You might want to check if you have the choice to take your child to therapists, rather than having therapists come to your home.
Also, the EI program is "all-you-can-eat." We didn't qualify for any reduction in fees and had to pay the full price every month, whether we had one session or four sessions. So, it's in your best interest to push for as many sessions per billing period. Just play up the neurotic mom -- "we're really concerned that our child needs more help to get back on the development track."
Lastly, if you can't get more therapist time, then ask the therapist to teach you exercises to do at home by yourself.
Good luck!
D.
p.s. We stopped the therapy after eight weeks because the therapist just wasn't reliable, and we weren't too concerned about our son's speech delay anyway (he's a boy and he was being exposed to English and Mandarin. Now he speaks in both).