My period was due Sunday but sometimes comes on the Monday. I know this because I'm on birth control which takes the guessing out of it. On Monday afternoon I saw what looked like the beginning signs of my period coming when I wiped so I put a tampon in. That night there was very very little blood on the tampon when I took it out. Today is Tuesday and I don't even see the period discoloration when I wipe anymore. What happened to my period? Where did it go?