Add Yahoo as a preferred source to see more of our stories on Google. Parents are hosting period parties to celebrate their child's first menstruation. (Photo: Getty) (Getty) When Tera Penoyer found ...

No matter what brings a woman to the doctor’s office, she can expect one question without fail: “When was the first day of your last menstrual period?” Dr. Alla Vash-Margita, chief of pediatric and ...