I've now read the material in this book three times, once as a series of blog posts, the second time in manuscript and now as a gen-u-ine book. Three times, and each time I was dazzled by Laura's honesty, insight, generosity, kindness, love, snark and beautiful writing.
The title pretty much tells you what it's about, the non-LC subject headings give you a few more clues:
Pregnant women--Mental Health.
Christian biography--United States.
Pregnancy, Unplanned--United States. [Extra fun: search your favorite library catalog for "unplanned pregnanc*" and see what subject headings your results yield.]
Wayward spinsters--Iowa--Iowa City.
(Disclaimer: I am friends with Laura, and I helped with the subject headings.)