Back When We Were Grown Ups by Anne Tyler

In this novel, a middle-aged woman stops for a moment and realizes that she is fairly sure she has become the "wrong woman".  She takes the time to examine her life as a widow with three stepdaughters, one daughter, an aged uncle-in-law, a brother-in-law and several grandchildren all in her care in one way or another.  

The premise intrigued me. I'm a fan of the "what if" novel if and when it is done cleverly.  I can't say that this one was done in a clever way.  It was thoughtful, insightful and enjoyable, but I would say that it was pretty much what might be expected.  A relatively quick read overall.