I am 24 years old and this had not happened with me in the past. Last month I had 2 periods in one month. I fear that to be a abnormality. Is that so? What are the reasons of getting the periods like that? Is it normal to have 2 periods in one month? I need to know everything about this. If you have some expert views and knowledge on the menstruation then please feel free to share that with me here. Thanks!