Is Lindsay Lohan pregnant?

This new set of photos of Lindsay Lohan has already sparked some pregnancy rumors.
The source of all the rumors is that Lindsay Lohan was wearing a prosthetic baby bump while shooting her new comedy movie "Labor Pains" in Encino, California.
Lohan plays an assistant in a publishing company where she creates a scheme to be pregnant in a desperate attempt to keep her boss from firing her.
Producer Rich Schwarts tells industry publication Variety, "I didn't know Lindsay before this, but we looked each other in the eye three months ago, and she has done everything I could have asked."
The movie also stars Cheryl Hines and Connie Britton as Suzi and directed by Lara Shapiro.