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Hayden Panettiere hasn't confirmed her pregnancy just yet, but her growing belly is starting to do the talking for her.

The "Nashville" star was spotted in  St. Tropez with fiance Wladimir Klitschko on Sunday, June 8 -- where she showed off the first hints of her baby bump in a cute black one-piece swimsuit.

The two were seen hanging out in the water together and getting cozy on a big yacht.

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This is the first sighting of the 24-year-old since rumors of her pregnancy started late last month. Hayden and the 38-year-old boxer beau have been engaged for about a year -- and recently opened up about her dream wedding.

"I want it to be classic, beautiful, and elegant, but I also want it to be fun," she told Brides magazine back in March. 

"It was very sweet and simple and genuine," she added about Wladimir's proposal. "It wasn’t about being overwhelmed by fireworks or a mariachi band. I think it’s amazing when people do that, but I like that mine was simple and from the heart."

So far, no word on when the two will tie the knot or how Panettiere's pregnancy will affect the next season of "Nashville" -- but congrats to the happy couple!

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