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Beyonce may have just casually dropped another clue that she's pregnant again.

On Sunday, Queen Bey posted a seemingly innocuous Instagram photo of herself buried in the sand with daughter Blue Ivy, 3, playing beside her. But look closely: She's sporting a giant sand belly.

A photo posted by Beyoncé (@beyonce) on

The sly photo comes four months after hubby Jay Z changed the lyric "I replace it with another one" to "pregnant with another one" in his song "Beach Is Better" on the couple's On the Run tour.

Beyonce has not officially commented yet, but she likely will just let her (real) belly do the talking. She confirmed her pregnancy with Blue by debuting her baby bump at the 2011 MTV Video Music Awards. Too bad she didn't go to the Golden Globes.

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