Please help preparing for entry + app in process

Hi,
I am a PhD student at a Canadian University. I also have my wife and kids living with me in Canada. I have applied for renewing my PR card in Sept and still in process. I had to leave Canada for an urgent family matter for a period of one week and will be retuning to Canada 5 days before the expiration date of my PR Card.
I will appreciate your feedback on the following questions:
1- will I expect any problem, investigation, or interview upon my entry?.
2- I have been told that, by default, I will be reported and asked to attend further investigation/ appeal later, Is it true?
3- Please advise on what documents should I prepare at hand to support me and to minimize reporting risk.(I have my university student card with me and can print registration letter from University website)
4- According to ecas online status my PR application has been approved on 10 November. How long it usually take to receive the card by mail or a letter to pick it up after the approval?


I will extremely appreciate your advice.

Edited by life900 - 02 Dec 2013 at 12:55am

Thank you very much for the prompt and encouraging response. I just need to prepare my evidences that I meet the residency obligations (almost 2 years and 10 months in Canada including few short trips to home country). I am not sure how the officer can assess my residency period specially that the stamps on my passports are not in English.

1- Do you advise me to prepare a certified translation of my passport stamps? or at least the last entry stamp to my home country to prove the date I left Canada?

2- Do I prepare a list of my exit/entry to Canada to provide when needed?

3- Would you suggest any particular documents to prove my ties to Canada other than my university card and registration?

I will extremely appreciate your kind advice to pass this expected interview safely .

Thank you very much.

Their main concern is when did you leave Canada last time. If you have a boarding pass from your previous travel, that would help. Or at least a printout of air ticket.