took plan b monday night, then tuesday evening went to the bathroom and noticed some light, light pinkish color on the paper. I then thought it was my period. Later that night, I went to the bathroom and noticed it was a dark brown spot, kind of dry already, and then i wiped myself and a pink tissue thing came out. It was like two circles on the ends with a stringy part holding them together. It is now wednesday and I dont see anymore pink when I wipe. I need help finding out what it was.