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Ciara kept her exciting baby news under wraps as she shot her the music video for her latest single, "How We Roll," a source tells PEOPLE

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Ciara and Russell Wilson's team is growing! On Tuesday, the "How We Roll" singer, 37, revealed that she's pregnant, expecting her fourth baby, the third with the Denver Broncos quarterback.

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The couple shared their exciting baby news in a video announcement on Instagram, filmed by the NFL star on the couple's anniversary trip to Japan last month.

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"You look at me like that again, we make another kid… You my heart I’m your rib” 🥰😘❤️,"

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she captioned the silhouette video, where she dances in front of a pool and turns to show her bump.

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The baby on the way joins 3-year-old son Win and daughter Sienna Princess, 6. Ciara is also mom to son Future Zahir, 9, whom she shares with rapper Future.

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"Ciara has been working and traveling all through her pregnancy. She shot the 'How We Roll' video while pregnant.

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They added, "It's astonishing how much energy she has when she's pregnant."

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Ciara Is Pregnant! Singer Is Expecting Another Baby with Husband Russell Wilson