My Girlfriend and i had anal sex and the condom broke i didnt cum inside her but just in case i have herd of girls having sperm leak into there virgina and getting them pregant so she took plan b one step on Novemeber 21st (btw her period stopped November 12) so she took it a week and a half after begining a new cycle....well a week later on wensdat the 28th she started spotting and at first it was more brown but now as of today the 29th its more red but there is still brown in it what does this mean is she showing signs of pregancy?