"i took plan b about a week after my period, when my partner and i had a slip up with a condom. i took it within 4 hours of the condom failing. at first i experienced cramping, light headaches, and some fatigue. after reading reviews i anticipated having some spotting about a week after taking the pill, but that never happened. i was anxious and my period was late. as advised by the packaging, after i was a week late, i took a pregnancy test and got a negative result. more time went by and i continued to get negatives. finally, a full three weeks late, my period finally came. plan b worked for me and is a nice option, but i advise couples to be more cautious about their birth control purely based on how stressful taking ec can be."