I know it is scary but you are doing everything right. If anything happens before you either hear from your pdoc or see the pediatrician I think you should take him in to the ER, especially if you have a children's ER near you.

Here's how I know you are doing things right. When I was about 14 and suicidal I had stockpiled pills and had written a note to my best friend about feeling suicidal. My mom found the note, ordered me to not be suicidal and didn't even notice the CPS caseworker I had at the time.

having a mom who is supportive from the beginning is a real help. You're doing the right things. Just keep reciting that and try to slide into sleep. You won't be able to help him if you don't sleep.