I have been spotting for two weeks and am not sure why. My period has always been regular twenty-eight day cycle with them lasting 3 to 4 days, until the past year. My periods have been come and go one month I won't have one, then the next month I will have a normal one. November I had a regular period and then December 2008 did not. I started my period on January 20, 2009 and it lasted until three days, the next day I began spotting a little bit at first and now its becoming heavier and painful. My husband and I have been trying to conceive and I don't know if something is wrong. I am twenty-one years old and am scared.