I had sex on 1/12/16. I am on an 84 day cycle of birth control pills. I took Plan B 4 hours after sex - because I might have missed a couple of pills. After taking Plan B I had light bleeding and diarrhea for a couple days. I had my period on 2/14 through 2/20, but I usually only bleed for 3 or 4 days. I have taken 3 pregnancy tests on: 2/29, 3/12, and 4/18 - all came out negative. I have had no pregnancy symptoms. My mind could by tricking me but my stomach feels hard when i lay down on it. My next period is to this week 5/8. I have also be looking up cryptic pregnancy stories - I think this is fueling my paranoia. Should I trust the results of the pregnancy tests? Am I being paranoid? Am I going crazy?