Does plan b cause yellow discharge?

I took plan b 6 days ago because the condom completely broke. I took the pill no more than 2 hours after this happened. So far everything was fine until today I went to the bathroom, & when I wiped I felt some slippery stuff (sorry tmi) when I looked there was yellow discharge (like my urine was extra yellow). I've taken plan b once before & never experienced this. Is this normal?