Salam Dear Khatera,
thanks for the best wishes, as far as visiting your spouse its a good idea to visit your spouse while the application in process since the cohabitation is a vital component when they assess the application but if you are a PR status holder you can't stay longer than 6 month if your are a citizen then you can stay as long as you wish, but if you are planing to stay for a long period make sure you perp your self some time CIC officer ask for proof of establishment in Canada or they ask if we issue the visa what plans you have in Canada as far as job and shelter, if you own a property than no issue you can show the house title or deed document that is good enough , if you are renting than that will raise a question as some time they think if they issue the visa applicant may not travel to Canada, I mean as you know the ultimate goal for CIC is to get people in Canada to work and pay taxes, and also right now in this situation you have to consider the security factor in AFG as well things are going bad by day, you have to decide based on your resources and situation what will be the suitable option for you. wish you all the best.
Regards,
Cvimm