Hi. Actually your period could be irregular for the next 2 to 3 months. The morning after pill (and x 2 for you) is a big whopping dose of hormones that rush in and upset the system (how it prevents conception from occurring) and then it takes a while for things to normalize. So, I would not worry but do know that the next couple to few months will be likely very unpredictable with regards to your cycle.
This means spotting, no period, period too often, etc. as those hormones work their way out of your system.
It also means that you don't know when you'll next ovulate. Right now, more than ever, it is essential to use good birth control and not have unprotected sex. Until you get on the pill, buy some condoms.
good luck