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Who's your (baby) daddy? Megan Fox jokes about paternity rumors in funny Instagram

Want to know the name of the father behind the actress's latest pregnancy? It's simpler than you think.
/ Source: TODAY

One risk of being a celebrity is having people speculating about your love life. Another is that they're going to get super nosy if you're in the midst of divorce proceedings with your husband and then start sporting a baby bump.

Megan Fox in Las Vegas in April.Alberto E. Rodriguez / Getty Images

Fortunately, Fox has a terrific sense of humor.

MORE: Megan Fox shares rare photo of son Bodhi — and he's a 'stunner'!

The 29-year-old actress showed up in Las Vegas looking pregnant earlier this week, which led to some speculation about just who the dad might be since she and husband Brian Austin Green filed for divorce last August after five years of marriage and 11 years together. (The pair already have two children, 3 1/2-year-old Noah and 2-year-old Bodhi.)

Megan Fox and Brian Austin Green at Golden Globes
Actress Megan Fox and actor Brian Austin Green at the 68th Annual Golden Globe Awards in 2011.Jason Merritt / Getty Images

Speculation ran high, then, on just who the father of her latest child might be. On Tuesday, Fox fired back with a hilarious Instagram showing her with three other actors: Shia LaBeouf, Will Arnett and Jake Johnson, all of whom she has had relationships with ... on screen. A paternity clue/clarification in the instagram caption: the hashtag #notthefather.

So just who is the baby daddy? That's for Megan Fox to know, and the rest of us to speculate!

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