Should I Be Worried?

So I'm on Necon 777 for 5 years now. I have been taking my pill consistently everyday this month at the same time and everything. This weekend me and my family took a trip and the time difference was by an hour. So for the past 3 days I took the pill at different times I say maybe 3 hours or so behind Of when I was suppose to take it. So Tuesday I had unprotected sex with my boyfriend and he ejaculated inside of me. About 8 hours afterwards I took the plan b pill because I am not trying to have a baby. Am I covered or what? My period is due next week according to my Pills but what about the next month? Should I be worried?