Many of my clients have concerns about changes in their weight if they begin to take birth control pills. I wanted to pass along a well done article discussing this issue.
Bottom Line: " The story that taking birth control pills makes you gain weight is based on more fiction than fact." The recommendation is to take the lowest dose that is effective for you.
http://www.latimes.com/health/la-he-birth-control-pills-20110316,0,3564299.story?page=2