Theoretically, you're eligible to sponsor your spouse from the day you became a PR (if the wedding took place after your application for PR was approved). Practically, no! Some of the required documents for spousal sponsorship include break down of your filed tax income from the previous year (in order words, you must have lived and filed tax income for at least a year in Canada before you apply). Although, you may submit other documents in the place of your tax report, even these alternative documents may be difficult to get if you've only spent 2 months in Canada. Has your PR card even arrived yet? I think you should consider the required supporting documents to see if you'll be able to provide them at this point