I have been contemplating using Yaz, the new birth control pill. I have some good and bad reviews at the same time about it. I know on the company website they say "YAZ is THE ONLY birth control proven to treat emotional and physical symptoms of PMDD (Premenstrual Dysphoric Disorder)," but does anyone have any experience using it. I heard you could miss your period on Yaz and your period won't start until much later than it used to. Is is true?