Diversion

I am sorry to say I was recently brought in for medication diversion. I am being offered a substance abuse program through work and have an attorney. I can't sleep the past week because I'm terrified of going to prison. Is it likely that the employer/investigator will see I'm in the program and have an oustanding positive record and do a Pretrial diversion/allow me to continue help through the program, or do medical professionals go to prison for this?