(IL) I forgot to report unemployment income since April - will my insurance be cancelled now?

I am freaking out. Before I call them on the phone to report my unemployment, which is approx. $277 a week, will they cancel my insurance? I genuinely thought I only needed to report earned income and the unemployment amount is under the income threshold so I thought I didn't need to report it unless it was over the limit.

This is my first time on Medicaid. Also, I am going to have a necessary surgery next month, so I really can't have my Medicaid being cancelled. I spent so much time doing the necessary preparation for this surgery - having my insurance be cancelled because I made a mistake will seriously negatively affect me because I am not sure when I will have another opportunity to take the time to focus on my chronic health issue.