I have always had regular 29 day periods with 4 days bleeding and one day spotting. This month it was quite different. I had 4 days light spotting with 2 days medium blood flow then 4 more days light spotting. This is the first irregular period I can remember. Could this be a sign of pregnancy or perhaps something more serious or is it possible to have a one off irregular period after 10 years of regular ones? Thanks for your help.:rolleyes: