Does the color of semen have any relavance to the liklihood of getting pregnant?

Sperm can survive in the cervix for up to a week, and the egg is viable for 24 to ... Is there a chance there i might be pregnant? Should I have pregnancy symptoms now? ... What are my chances of getting pregnant? .... On the 17th it got a little heavier, light in color, but still no need for a pad. ...