emergency contraception
"I took this pill for the first time about 48 hrs after an accident.  The lady at the counter told me thats how she had 2 of her kids.  Well, she was right because I ended up pregnant.  Fast fwd 3 yrs, within a two month time span the condom came off twice. Took the pill within hrs and got my period. Next time took it also within hours and got my period a week and a half early and it was very heavy and lasted almost 2 weeks. So my experience is if you take it right away you are probably fine. If not, your luck goes down with each passing hour. Oh also the last time I took the generic form. That was the fist time I had such heavy bleeding from it. Next time I may stick w brand name. If needed"