I am using Nordette. I was using triphasil for four months and have been on Nordette for 2 months. I always get my period the same time, the Tuesday of every 4th week. This month I have not gotten my period and it has been 5 days since I took my last active pill. I am really worried. There was an occasions this month that I took my pill three hours late and another where I took it an hour late. I have been really stressed this month. Should I be worried?