Hello I took Plan B last week on the 7th and today the 14th is one week, nd I still haven't had my period is there a possibiili the first time I took Plan B was on sept. 10, 2011 it worked. Second time it was an accident & I used "next choice" on oct. 10

Please . Please check a pregnancy test, and if it is negative wait two days and take another one (it takes a while for the pregnancy hormone-beta hcg-to build up). Then if you still don't have your period, be seen for a blood pregnancy test as they are more accurate.