I’m embarrassed af

Okay so my period came on a random date, time, everything. And I don’t know when it started because I checked before when I went use the restroom and nothing was there. So anyway... I went to my best friends apartment (male) and he had a bunch of friends over. So the whole night goes on... I only got up once and I don’t think it started. But when I got home... I looked in the mirror and a big red stain was dead splat in the middle of my butt. I pray that no one saw it and I didn’t leave a stain cause that’s so embarrassing. Idk how to feel. What if they noticed and are laughing at me right now?