Help! (mononessa tablets)

I’ve been on the pill since the 2nd of October. And I haven’t missed a day but I don’t always take it at the exact same time every day. And on yesterday I took it around 6:30 the latest I’ve ever took it. I also had sex 5 hours after I took the pill (w/out a condom). 🤦🏾‍♀️He pull out. But Should I take a plan b?