okay my period used to come like every 6 weeks i know thats kinda late but still it always came and i always had it for exactly 7 days and since the past yr its gotten later and later and later and now it comes just about every 3 months and now its really really heavy and im constantly passing blood clots LOTS of them theyre not HUGE but they are pretty big is that normal? o n im not on any sort of bc i was on ortho try-cyclenlo for a few weeks n i quit takin them and that was about a year ago...