No, Lindsay Lohan was not pregnant while filming Mean Girls in 2003.
- The film was released in 2004, and Lohan was only 17 years old at the time.
- There is no evidence or public information suggesting she was pregnant during filming.
This rumor likely stemmed from the fact that Lohan was a young and popular actress at the time, and her personal life was often in the news. However, it's important to rely on verified information and not spread unsubstantiated rumors.
