It was the last day of my period, So after the accident of the condom splitting, I took the pill within 20 minutes. A week or so later, I got spotting which turned to normal period-like flow that lasted only 4 days. 2-3 weeks later, I took two pregnancy tests on different days and they were both negative. My next period estimate was 23/02/19 according to the tracker but I haven't had it yet. Am I pregnant? Are the previous tests I’ve had accurate? Or is it just the Plan B messing up my cycle?