Nearly all legal residents of the US are either eligible for Medicaid or covered by insurance. The average out of pocket cost of child birth is under $3,000 for people with insurance and free for people on Medicaid.

Births to illegal immigrants accounts for about 5% of child births in the US. These are not covered by Medicaid, but are covered by some state health systems. To my knowledge, Canada does not extend healthcare to illegal immigrants either. https://nationalpost.com/news/canada/illegal-immigrants-have...