I'm 16 years old and my periods are normally irregular. It has only once been this late though before. I've been having light cramps for the past few days but i never really get bad ones anyways. I've also has diarrhea but i usually get that around the time of my period. I have exams at the moment if that can be any help but I'm not overly stressed about them. I put in my menstrual cup this afternoon and realized there was a really bad odor, never had it before. Can anyone help?