"i normally take temperatures every morning to predict when i&#039;m fertile/unfertile and modify my sexual practices accordingly. i knew i was at the height of my fertility so we had sex with a condom. but the condom slipped off and neither one of us noticed until after he &quot;finished.&quot;  i read the reviews of people who took the traditional plan b (levonorgestrel) within just a few hours of having sex but still got pregnant. i&#039;ve also had really bad side effects from levonorgestrel including mood swings, depression, digestive issues, etc. levonorgestrel works to prevent ovulation, but since i may have already ovulated, i decided to take ella instead. ella is more effective than plan b and i&#039;m happy to report that ella gave me zero side effects!"