Thanks for your reply dear.Some traction has happened on people's application like medical passed, so it is possible though unlikely. I have been on your background check is in progress, we will send you a message once we start background check for a while now. So I am guessing May applicants have hit a road block. Possibly the faster medical pass is being met by slow IP1 process. Who knows?
People who's AoR are far later then me have got IP1 and again NA within interval of 2 days, so i don't think this is a road block, its different for everyone though, some applicants like yourself are in IP1 longer then others even upto 2 weeks, some like me never get IP1(or miss it) and straight to IP2 or even PPR. There is nothing hard and fast, my question was that maybe I missed my update due to weekend, and that's what i wanted to know that whether they update files on weekends or not. Stay positive CIC is going fast for May AORs also, each case is different though.