Thanks a lot so must wait for 5 monthsThese terms does not mean anything and do not show any specific stage of your application. Only Medical Passed status is significant in your CIC account which means that your R10 check has been passed and your application is promoted in GCMS system and you are given UCI number. After that NA, NA2, IP1 & IP2 are not an indicator for anything. Background status change is a good sign but it does not show exact processing of your application.
In my opinion, Just hang on till you complete 5 months after AOR. If you do not get any PPR till then then better to order GCMS notes to get the better idea of your application processing.