Hi.This is about one of my friends who took a morning after pill on 7th January,this year.She had her last periods on 28th December,last year.After about a week of taking the pill,she had light to medium bleeding for 2-3 days, with slight abdominal pain and weakness,which was probably due to the pill.Now again on this month 25th,she has started bleeding,with abdominal pain.Is this her normal period?Or is there annything to worry about.She is 20 years old.