If it makes you feel better, I had such a scare a few weeks ago. I was in a rush and wore black tights (leggings?) without underwear. I had no idea that my period would come that day because it was already two weeks late. Lo and behold, I started bleeding right as I was finishing up a class! Had to walk back to my place praying no one would notice me bleeding. Wish I thought of tissue paper but I kept thinking about what to do if they fell out or something. Tampons freaked me out so that was a big no (never used them before!).

Hated that day and the entire next week decided to include an extra dosage of cramps in the bloody gift basket!