I have been taking yaz for a month now and have been on the white (non active pills for 4 days) I have yet to get my period! As for yaz, you all know that there are only 4 non hormonal pills in a pack unlike the traditional 7.. So anyways.. I am getting worried! Im suppose to start taking my new pack tomorrow (sunday) but if I havent gotten my period by then, am I suppose to take the pill!! Someone please help and let me know what is going on!