About 5 weeks ago, my boyfriend and I were a little intoxicated and ultimately, it resulted in me taking Plan B. I had a period a few days after. We have had sex since then one other time 3 weeks ago and he pulled out a bit before he finished. I'm 12 days late on my period and I'm hoping that it's because of the Plan B. Took a test about a week ago and it came back negative. Going to try one more test on Sunday and see if it's still negative.