Had anyone had a false negative at home pregnancy test? My boyfriend and I had unprotected sex on October 2nd, I took Plan B like 2 hours afterward. I had been off my period for almost a week at the time and not at my fertile time yet. A few days afterward, I had a light period for 2-3 days, which is what happened when I had taken the pill before. But I still haven't gotten my period since then. I have taken 4 pregnancy tests and they all have been negative. But I'm a little freaked that I may be pregnant since it's been 2 months. My periods has always been irregular, could it just be really messed up now? Has anyone had a similar experience?