on may 2nd i took a plan b pill after unprotected sex. Then on may 9th i started bleeding like usuall period 7 days but i know its from the pill. i started bleeding again on may 22 it only lasted 4 days but it wasnt spotting it was like a lighter period.it is now june and my period has not come yet but im having period symptoms like my period is coming. Should i be worried? Does Plan b mess up your cycle?