The Gabriel Project does what you what Buster describes, although the extent of aid depends on the local operation.

http://www.catholic.org/news/national/story.php?id=34368

Some dioceses have robusts programs to aid women with pregnancy and beyond.

http://adw.org/pregnant-need-help/

https://www.catholiccharitiesdc.org/sanctuariesforlife

https://www.catholiccharitiesdc.org/page.aspx?pid=368

I support a home run by sisters in one of the dioceses which provides pretty much the entire package for pregnant women from housing through birth and then job placement and beyond with as much as I can.