"i&#039;m writing this because i haven&#039;t seen many reviews after the first cycle.  my fiance and i had sex the day i ovulated and the condom slipped off without us knowing till it was too late. i waited about 24 hours because i didn&#039;t want the side effects to ruin the weekend, and it says you have up to 72 hours to take it.  (although the sooner the better it says) i  took it at night with food and didn&#039;t have any side effects until about 4 days later. i had about 2 weeks of bad pms symptoms and fatigue, then i got a very heavy period.  i am also over the weight limit at 175.  about 23 days after that period started, i started spotting brown blood and have been doing that for almost a week and now the flow is heavier like a real period. it works."