I got my period on nov. 16 it lasted 6 days, my next period came dec 4. my periods have always been regular, and I don't take birth control. I have a dr apt. tomorrow but I wanted to know what anybody thought this might be.. I was not pregnant so no miscarrige, but is it possible that I am now? What do you all think is going on, because I'm really going crazy trying to figure this out...