woke up and there’s blood everywhere ???

I’m on vacation and i just woke up in blood everywhere !! I was on tri cyclen lo but I quit it last saturday after it was making me so depressed. I quit the pill like half way and my last period ended dec 11. Now it’s the 27th and I woke up with horrible cramps and i’m bleeding everywhere ?! I was supposed to get my period Jan 4th but I guess it came early cuz i quit birth control ??? Why is this happening?!?