I have been on YAZ for exactly 2 months...it only has 4 white pills and a month ago i started my period after taking the second one...currently i have taken my third a few hours ago and still nothing....I'm stressing a lot! is this normal with yaz or should i wait it out till tomorrow? I have been having sex and i was on another pill for a year before i started yaz...any opinions or experiences will be helpful