This has happened to me plenty of times. Its really nothing to worry about. It could mostly just mean your horomones are wack because of stress or anything in that nature. If you are really worried about it just go to the doctors, if that will make you feel better. Hope I helped. =]
My period has been go for 9 days is this ok?
I had my period on time I got it on march 17th then 3 weeks alte ri get it agian whats going on?