I am always scared when I up my calories. Hold over from the "low fat, low calorie" thinking, I guess.

There have been times that my weight went up a pound or two, but always seemed to go back down in a week or so. Everyone's body responds to change differently. I wouldn't worry about it too much as long as it is only a pound or two. You don't mention what kinds of foods you are eating. Maybe if you listed them or started a journal-the smart people here could give you some more specific feedback.