I took plan b about two weeks ago12 hours after sex because the condom slipped at one point. period is 2 days late. did plan b not work?

Likely did work: You took Plan B well within the effective time frame for it to be effective. If you are unsure as to whether you are pregnant, a home pregnancy test can easily answer that question. There can be a lot of other reasons why your period is late, other than pregnancy. If the test is negative and you do not have your period, you should consult your PCP or ob/gyn

Not necessarily: Plan B can cause menstrual flow changes (spotting, bleeding, early or late period). Take pregnancy test & notify dr if your period is 7 or > days late.