How does Plan B affect your period?

I had sex with my boyfriend about two weeks ago, the condom broke, so we got a form of Plan B. We ended up getting “My Way” (the pharmacist assured us that it was as effective as Plan B). I also had sex with my boyfriend last week and he came in me 🤦🏻‍♀️ so I ended up taking another Plan B (this time it was “Option 2”). My period is supposed to start today. I’m just wondering how late those medications might make my period?