If you've ever compared notes with a girlfriend, you've likely found that your periods are as different as your wardrobes. Clotting, cramping, heavy bleeding, light bleeding…women’s menstrual cycles run the gamut of experience.   

All those differences are no big deal and are completely normal, right? Wrong. Paying attention to what happens during that time of the month can actually tell you a lot about the quality of the uterine lining itself and therefore, your fertility. Let’s take a look.