The Best and Hardest Thing — Pat Brisson

Fifteen-year-old Molly Biden has always been studious, dependable, some might even say saintly. And she's sick of herself. So when she spots mysterious bad boy Grady Dillon, she devises a plan to make herself over into someone new, someone who will attract Grady's attention. She succeeds--but a little too well. When Molly discovers she's pregnant, she's forced to make the hardest choice of her life.

This addictively readable portrayal of Molly's struggle to accept her pregnancy and the fact that her life will never be the same is told entirely in poetry, from sonnets to haiku.