I have always been fairly regular. I have a 32 day cycle, every once in a while 33 days. I am 10 dpo today, AF due on Feb 5th. Yesterday I had some light cramping and last night I had what I was absolutely convinced was IB. Small amount of brownish blood when I wiped. I was ridiculously excited, but then I woke up at 4:30 this morning having bled through my underwear (sorry tmi). I have never EVER been early for my period. This morning I am still bleeding - not crazy heavy, but it's clotty and dark colored. It's way more than I would expect for IB and I'm so trying not be sad right now, but more than anything I'm confused. What would cause my period to start 4-5 days early? Anyone else ever have this?