No one goes into pregnancy expecting to lose a child. Even when it happens, the event can feel so surreal a mother can wonder if she's just woken from a terrible nightmare. In Pitter-Pat, author Amy Erickson offers a touching and often heartrending memoir about a mother trying to make sense of her life after the unexpected loss of her second child, Gabriel, who was born prematurely and who lived briefly before passing. Written in the form of letters...