Currently I'm taking the pill and have been on the same one for two years. Since I've started the pill I've never missed a period or had a late period. The very first month I had light spotting but since then, never. My period always comes on the Wednesday of the last week in the pack sometimes Thursday morning-that's the latest. This past month I know I've been on time everyday and haven't missed any. Should I be concerned it hasn't come? And no spotting either.