October Baby by Eric Wilson

Not long after Hannah, a college freshman, experiences increasing anxiety and a sudden collapse, all signs point to the surprising circumstances of her birth.  Hannah soon learns from her parents that she was adopted and is the survivor of a failed abortion attempt.  Bewildered, angry, and confused, Hannah turns to her oldest friend, Jason, for support.  Encouraged by his adventurous spirit, she joins Jason and his friends on a road trip, embarking on a journey to discover her hidden past and find hope for the unknown future.  Along the way, Hannah finds that every life is beautiful, and that life can be so much more than what we might have planned.  This author also wrote the book "Fireproof".  I loved the book and can't wait to watch the movie adaptation.