Megan Fox sparked rumours she's pregnant for the third time after walking the red carpet with an apparent baby bump Monday night, April 11th.

The actress posed for photos at Las Vegas' annual CinemaCon to promote her new film, Teenage Mutant Ninja Turtles: Out of the Shadows, however the stunning brunette left people guessing after she wore a tight black dress which clung to her noticeably protruding belly.

Megan, who happily took pictures alongside her co-star Will Arnett prior to speaking to reporters, did not make any mention of a possible pregnancy, and according to E! News, her representative had no comment on the speculation.

The possible baby news comes nearly seven months after the Transformers star filed for divorce from her actor husband Brian Austin Green. The 29 year old cited "irreconcilable differences" as the reason for their split after five years of marriage.

Megan and Brian are parents to two sons, Noah, three, and Bodhi, two.

PHOTO: WENN.com