For the past 3 months I have been getting my period on the 13th every month like clockwork. My period is usually never on time and is usually instead of the normal 28 day cycle it would be 34-35 day cycles. This past month my period came only when I peed. It was a very light period for 3 days and now I don't have it. This is not normal for me. I'm still expecting to see my period as how it normally comes. Need advice