Late period? Ok so I had sex December 27 and the condom broke so I went to the store and bought plan b. A week later I had period like bleeding for about a week. I didn't get my planned period for January but I'm pretty sure the bleeding a week after the plan b counts as my period. Then I got my period around February 8. I had sex with a condom on valentines day and we checked and there were no holes or tears in the condom. My next period was due for march 8 and I didn't get it. My breasts have been sore and I've been sorta nauseous. I'm now three days late with sore breasts and no cramps. Could this still be the plan b taking affect or what? I need help.