I had unprotected sex and he came in me on the 20th, I took a plan be the next afternoon on the 21st. I bled a week later for two days which I read was normal for certain people after taking a plan b. It is now three weeks and one day later and I still haven’t got my period. What are everyone’s thoughts? I should also mention that I had just finished a pack of my birth control pills so I had not been protected which is why I took the plan b. I haven’t taken my birth control since so I’m not entirely sure about whether my period had been missed or not as I don’t have my birth control pills which is how I usually keep track of my period. My last period was March 14-18.