What do i do plz HELP!!!!!!!!!! ('girl' problems!)?

okay so i started my period this morning and its REALLY bad im bleeding real heavy and i have HORRIBLE craps like the craps are so bad i cried when i got up to get my laptop now i can't find a comfortable stop and i feel like imma throw up!! but i promised my best friend and boyfriend i would go to the county fair with them today and ride the rides and everything what am i gonna do!? how can i make the pain stop so i can go have fun with them!!!!!!!!!!!!!!! i already took 3 pamprin and they ARE NOT helping me!!!!!!!!!!!! and no im not gonna skip the county fair for this ill go there and cry the whole time!!! lol. i told my boyfriend my cramps were so bad i couldn't move and he just said he'd bring me skittles later!!!(inside thing he gets me a bag of skittles everytime i don't feel good cause theyre my fav candy!) THIS SUCKS! :( i wish i could just make my period go away