5 days late...

TTC but not for a few months (I'm in school) I am still on the pill, this was my last month before stopping. I am now 5 days late, no spotting, nothing at all. I have felt weird this week but I could just be siking myself out. Took a pregnancy test today and it was negative. I'm not sure what to do next? Now I'm second guessing staying on BC if I keep missing periods....should I start a new pack if I don't get my period? Help!!! :(