Delayed Second Period. Plan B or Pregnant? 🤯

Toward the middle of January I took a Plan B. My period came a little late but none the less I was very happy. Over the roof.

We had sex a couple times after but always used a condom. Only once the condom broke but we checked it and made sure there was no precome inside. Also, he urinated before his last ejaculation.

Fast forward to now my period was due yesterday. This is day two of no period. I am not experiencing any PMS syndrome( I don’t usually have any, only cramping when I’m about to start menstruating). I have minor constipation but other than that I feel normal.

Could it be that the plan B just threw off my entire menstrual cycle? Or does it only effect that first cycle? Please help 😭