lol!! i dont mean to laugh at ur question melony... i am laughing at the video!! it was funny but indeed answered ur question!!
http://www.youtube.com/watch?v=WRpKabYJ8bU
This will answer ur question.... very cute animated video....
Yeah there is a chance that you could still get pregnant b/c sperm swims. As long as you wasnt ovulating that you are good or you want be 3 or 4 days after you had sex. You ovulate the 14 and 16 day after your cycel starting with day one of your period!!