Hello the first day of my last period cycle was Jan 12,2012 ended on the 16th sometimes i have irregular periods On the 24th tuesday morning i had unprotected sex(he ejucalated inside and im not on birth control). Two days after when i went to the bathroom and when i wiped there was peached or pinkish colored and it had a weird old smell then the days after that it was pinkish mixed with brown. Yesturday and today which is the 30th my discharge was starting to clear but im now having itchyness. And im worried it could all be an infection.. But can it be signs of pregnancy?