The article in question.

https://www.cbsnews.com/news/phoenix-baby-left-alone-after-mother-dies-rescued/

It does say the mother recently gave birth. One can reasonably assume that the child in question is who she gave birth to. No matter what, the title and the article are terribly written.

Edit: fixed link

Edit 2: here is a slightly more responsibly written article and title.

https://www.independent.co.uk/news/world/americas/phoenix-baby-saved-mother-death-b2779209.html