"well this is the second time i have had to take it. i am not making this a routine but accidents do happen. the last time was several months ago. i use to be on the iud but i continued to have problems with it. i have tried several pills as well but to no avail , my body does not handle them well either. i am considering sterilization but my husband said he would do it. so this is why i have had this experience. one thing i noticed is plan b has worked for me. i have mood changes similar to pms for a few days. after about a week (7 days) i begin spotting and start my period. i am thankful but it does work  a week after you ended your last period. i can only blame myself. plan b has worked for me."