No. Womens cycles can change but having your period, whether early or late, usually signifies that you're NOT pregnant. Unless it's just very lite spotting, there's very little possibility of pregnancy.

Try OVGuide.com. You can plug in a search for any movie and it'll give you a list of links to the movie. It's usually pretty good and I've watched a number of movies from there. OVGuide also works for music, games, and other entertainment.