Hi so about two months ago my ex had came in me and two days later I took a plan b everything was fine and I got my period on the day <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> had said I would and everything was normal the month of November I did not get my period and I am 12 days late , I was wondering if this is common after taking plan b does it affect your other periods etc ? Please can someone help I’m very worried