Today is day 53 of my cycle. I still haven't started my period. On day 32, I had a light 1 day "period" but then nothing more . Since then, every few days I'll see 1 small piece of tissue in the toliet and yesterday I wiped pink. Day 42 I took a pregnancy test and it was negative. I'm really starting to stress - am I pregnant and it's not showing up yet or is my period late for another reason (stress??). Help!