White Sheets

I've had these beautiful white sheets for 5 days. Five! Days! And now they have a big red stain right in the middle, because my period is an unpredictable little asshole.

What do? How can I make these sheets look like new again, or conversely, should I just play this up and present my stained sheets to any prospective overnight guests as a way to gauge their comfort level with my vaginal output?