Did you call IRCC this week already? I'm in the same boat .. I will not have time to call this week, but I don't know when to call them.Same Boat!
I called IRCC 2 weeks ago and they said my eligibility is going on and background check hasn't started. I am planning to call again this week, since I have crossed the 3 month mark, and see if anything has changed. It is true that everything is going very slowly. As of now I am just hoping I get the PPR within the 6 months deadline.