Okay So Me And My Boyfriend Has Sex On January

Okay so me and my boyfriend has sex on January 2nd the condom broke and he came inside of me. According to my calendar it was my first day fertile. We took no chances and got the plan B pill with in the next 2 or 3 hours. Today is the 9th and I found the piece of condom in me when I was showering. Is there any possible way I can be pregnant even after taking the pill?