You have to remain in Alberta for the next 12 months to have coverage and not be asked to pay for any services you've used.I actually spoke with Alberta health care yesterday as i am in a similar situation with my wife, obviously this only applies to Alberta but if your intention is to reside in canada when you land (presuming the mother is already a PR/Citizen. You are covered from day 1, you may just have to pay out of pocket until you get your health card and then you are entitled to claim everything back to the day you landed.