This frank, funny guide to getting your period gives preteens all they need to master--and even celebrate --menstruation. Getting your period for the first time can be mortifying, weird, and messy--and asking questions about it can feel even worse. But it doesn't have to be that way. This taboo-free guide is packed with honest advice and big-sisterly wisdom on all the things girls need to know: from what cramps feel like to whether you...