I can give you some general information about pensions and marriage in Canada. Generally, the pension plan will have stated terms including who is the "beneficiary" of the pension.
If you are concerned about a private pension, I would recommend contacting your pension provider. If you are looking into your Canada Pension Plan, I would recommend contacting http://www.esdc.gc.ca/en/service_canada/contact/general.page#cpp.
Regarding pension splitting, the Family Law Act s.10.1 has rules about dividing a pension when a couple divorces. I am not sure if rules exist for pension splitting during a marriage. You can read section 10.1 of the FLA here: https://www.ontario.ca/laws/statute/90f03#BK12.
I hope this information proves helpful. Best of luck with your situation.