this one comes w a story so bare w me. i had the mirena put in me about a year ago, and about two months ago I got it taken out because it was giving me constant bladder infections/uti's. when i was on the mirena my peroids were a lil wonky... my obgyn told that it was ok to start on the pill right away. that whole first week on the pill, I bled. but these past two placebo weeks... I've had no period! is this normal for girls with irregular periods or should I call my dr??