i am Canadian citizen, newborn should be Canadian citizen.
Congrats on your new born.
I guess you the husband and Sponsor is the Canadian Citizen.
You newborn may be a Canadian Citizen, but this depends.
1. if Baby was born in Canada
- the newborn is Canadian Citizenship by Birth.
- Not eligible to be added to sponsorship or added to sponsorship.
2. if Baby was born outside Canada
2.1 If Canadian parent became Canadian Citizen by Birth or Naturalization, then the baby is a 1st generation born outside Canada and is a Citizen.
Not eligible to be added to sponsorship or added to sponsorship............apply for proof of citizenship.
2.2 If Canadian parent was born outside Canada to a Canadian parent, then the baby is a 2nd generation born outside Canada and not a citizen.
Eligible to be sponsored and added to sponsorship...........due to the 2nd generation limit rule.
Newborn should be add to sponsorship to receive PR......don't Principal Applicant to land and later sponsor newborn.
I hope your case is 1 or 2.1.,
otherwise...
https://www.canadavisa.com/canada-immigration-discussion-board/threads/how-to-add-a-new-born-to-spousal-sponsorship-application-for-permanent-residency.534211/
Cheers and Congrats !!!!!