I think they must vary also. Most people seem to have to do 2 weeks preop liquid. My Dr. told me I need to start liquids on July 25, so that is just 1 week before surgery. They also said I would be on liquids for 3 weeks after.
My surgery is scheduled for Aug. 1. I am also really excited and really scared! I would love to keep in touch since we are having it done so close together.