"my mistake happened on 8/18 , an hour later i immediately went and bought take action. two days later i started to bleed heavily like a period( even though my period just ended 8/17) this continued for 4 days. i experienced every side affect and although i wasn&#039;t eating more i gained 10 lbs and felt like a cow. 9/12 came and no period, i took multiple test and were negative, my period came 6 excruciating days late. and ill take the side affects over a baby. try and relax. the pill works. the wait for you period is like a punishment not to let it happen again."