I had a regular period the 1st of feburary a few days after it was done I had unprotected sex with the pull out method then a week later had unprotected sex again pull out method but I took plan b 2 days later (this is my third time taking it within months of eachother) a week later I started spotting faintly at first it was pink then brown the brownish red then pink now red with slight cramps and it hasn't stoped I am now going on day 11 of spotting and I am wondering what is going on and if something could be wrong my next period is due in a day or 2 .