Can Plan B mess up your cycle for the next month?

about just a little over a month ago I took plan b and started bleeding a day later that lasted for about a week and then it stopped for 3-4 days and then I started bleeding again and that lasted for about 5-6 days, I am currently 2 weeks late for my period this month is it a possibility that I could be pregnant? Or did the plan b just mess up my cycle that bad? Haven’t had any symptoms of my period whatsoever no cramps no bloating not even sore breasts.