emergency contraception
"I took plan b late July because like everyone, accidents happen.. A couple days later, I started to bleed (first a brown-reddish discharge, then it turned like a period) for a couple of days. It worried me because my period wasn't supposed to come until two weeks.. After the two weeks come, I missed my regular period.. I took about 4-5 pregnancy test, ALL negative. I began feeling my breasts become very heavy and I started to cramp and sure enough, I thought I was pregnant. I began a parsley regime to try to induce my period, but it did not work. I recounted the days I'm supposed to have my period, starting with the first time I bled, and my period came right on time after that! 
Overall it works, you just need to be patient!"