What's the real scoop on menstruation and puberty? In Have You Started Yet?, the first book in our new, edgy Plugged In "TM", series, girls tell girls exactly how it is, what to expect, and how to deal with their changing bodies. It's all here -- answers to the questions nobody really wants to ask but everyone is dying to know about -- plus information on first gynecological exams, sexuality and safe sex, diet and exercise suggestions, a personal...