Plan B??

Hi, I dont know if you could help me. I have been on birth control pills for over 2 years and yesterday Sunday July 22nd was going to start my 2nd week of my pack, I normally take my pills at 8:30pm. I forgot my pill and took it today at 8:30am and will take today’s pill at 8:30pm or so as usual. My question is, should I take a Plan B pill? During January and February I took 2 of them in a timeframe of 3 weeks or so. If you could help me with that I would really appreciate it!