I'm now 5 days late for my cycle.  My period is like clockwork so this is not normal to be late.  I had terrible cramping a few days last week (again not normal for me)  and have been feeling like I should start any minute but nothing.  I am having a white discharge but no discomfort as far as pain or itchiness.  I do not have any  signs of being pregnant.   No sore breasts,  no headaches,  no sickness nothing except perhaps a mood swing.  Although,  mood swings are typical for me during my cycle.  I took a pregnancy test about 3 days ago and it was negative.  Do I just keep waiting?  Or could this be a bigger problem that I should see my doctor about soon?