You will definately get unemployment, no if's ands or but's. Do you work in MO or IL?
I do know for a fact MO is denying very few requests for unemployment right now. You basically have to abandon your job or steal from the company to be denied.
Good luck to you.
And for you to take 3 months instead of the alloted 6-8 weeks, I don't know where that would play in. You only get the full 12 weeks of FMLA if it is medical related.