Lmao, here your cherry has popped if you have had sex - blood or not.
To have your cherry popped means to lose your virginity.
But to answer the question in nearly 13 years of being sexually active, I have never bled from having sex.
best way to get blood out of anything dunk it in
cold salt water, change water regular, then wash as usual.
Peroxide is bleach and will take out any colour as well.
Salt water can be used on anything (check wool garments though), and won't take out the colour, just make sure the water is cold else you will cook the stain in.