It’s true! Brian Austin Green is the father of pregnant Megan Fox’s baby-to-be, sources confirm to Us Weekly. The Teenage Mutant Ninja Turtles actress surprised fans when she stepped out at CinemaCon in Las Vegas on Monday, April 11, showing off her baby bump in a body-hugging dress.

Less than 24 hours later, the expectant actress — dressed a billowy, low-cut frock that showed off her cleavage — and the actor were spotted grabbing lunch together in Santa Monica on Tuesday, April 12.

After Us confirmed the Transformers actress is pregnant with her third child, Fox joked around on Instagram Tuesday about who the father is.

“#notthefather,” Fox, 29, wrote alongside a collage of photos of herself with her former costars Shia LaBeouf (Transformers), Will Arnett (Teenage Mutant Ninja Turtles) and Jake Johnson (New Girl).

According to an insider, the exes have been working on their relationship ever since Fox filed for divorce from the Beverly Hills, 90210 alum this past August after five years of marriage.

Fox and Green, who were together for almost 12 years, are already parents of sons Noah, 3, and Bodhi, 2. 

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