Is Britney Spears pregnant 

Britney, 40, shared the sweet baby news in an Instagram photo.

The pop star recalled how she "lost so much weight" during her Maui trip, "only to gain it back."

After taking a pregnancy test, the music star discovered about four days later: "I am having a baby."

The princess of pop also dropped a series of Instagram photos - in which she dressed in pink.

Britney was vocal about wanting more children with her longtime beau.

Britney is the mother of two sons, Jaden and Sean, with her ex-husband Kevin Federline.

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