What should I do?! Kind of confusing!?

That's problematic! Talk to an administrator and lie that your periods are super heavy. What I do is change during break (Between 2nd and third hour) and at lunch, between 5th and 6th. And sometimes it's not enough and I have to leave a cl. IT REALLY SUCKS THAT THEY TREAT US THAT WAY. I HOPE I JUST BLEED EVERYWHERE. THEN THEY'LL BE SATISFIED?