Phases of Menstrual cycle

Read the best book on periods for girls!分類：period, menstrual cycle, pms, ovulation, tampons, cramps, premenstrual syndrome, pads, sanitary napkins, hormones, first period, prostaglandins, mood swings, food cravings, water retention, bloating, periods and exercise, acne and periods, menstrual problems, vagina, reproductive system, pimples, menstrual flow...