How does poverty cause someone to become a parent, and then cause the other parent to leave? Not disagreeing, but I've never been in abject poverty so I can't really understand how the line goes from one to the other.
[0] https://www.bankrate.com/banking/savings/emergency-savings-r... [1] https://www.amjmed.com/article/S0002-93430900525-7/fulltext
Simply put, the impoverished just don't have access to resources that others do, including the ability to take off from work and travel somewhere to get an abortion, if needed.
Add to that the poverty to prison pipeline and it's clear that it's really a systemic issue.