[Always *]

Well, I think that people have this expectation that their period will always come at the exact same time 100% of the time. I think it's best to just put it from your mind, don't let it freak you out, just cause it's late doesn't mean anything serious is wrong. If you don't get it in 2 more weeks I'd get another pregnancy test to be safe. You COULD have a cyst for all you know, but if you get another negative test (or are certain your not preggo) then you can always look into that (BC prevents cysts so going off it could allow that to occur more easily), but if it's just a late period (no pain, no cramps, no nothing) there isn't likely anything serious going on, but give it until you miss 2 then see a doc missing the odd single period is nothing hugely serious unless you might be pregnant, another week or 2 won't hurt you unless, like I said, your experiencing some sort of abdominal pain or what ever