Bean Trees - Barbara Kingsolver

Plucky Taylor Greer grows up poor in rural Kentucky with two goals: to avoid pregnancy and to get away. She succeeds on both counts when she buys an old car and heads west. But midway across the country motherhood catches up with her when she becomes the guardian of an abandoned baby girl she calls Turtle. In Tuscon they encounter an extraordinary array of people, and with their help, Taylor builds herself and her sweet, stunned child a life.