Hayden Panettiere is reportedly pregnant, expecting a baby with fiance Wladimir Klitschko, and if the past is any indication, she'll take her sweet time before confirming the good news. 

"Hayden is totally pregnant!," a source told Us Weekly for a story published Wednesday. 

CAPTIONHollywood baby boom | Rachel Bilson and Hayden Christensen

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Rachel Bilson is reportedly expecting her first child with boyfriend Hayden Christensen. The pair got engaged in December 2008 but called things off because of their separate lives.

CAPTIONHayden Panettiere and Wladimir Klitschko

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Actress Hayden Panettiere and her fiance, world champion boxer Wladimir Klitschko, are expecting their first child together. "Everything that's happening in Ukraine definitely put a hold on things," Panettiere said in April 2014.

CAPTIONCiara and Future

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Ciara and her husband, Future, gave birth to Future Zahir Wilburn. This is the first child for Ciara and the second for Future. The pair got engaged in October 2013 and plan to wed sometime this year.

CAPTIONBruce Willis and Emma Heming-Willis

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Actor Bruce Willis and his wife, model Emma Heming-Willis, welcomed their second child, a girl named Evelyn Penn. Bruce, 58, and Emma, 35, tied the knot in May 2009. Their first child together, Maybel Ray, was born in 2012.

CAPTIONLeelee Sobieski and Adam Kimmel

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Actress Leelee Sobieski and menswear designer husband Adam Kimmel are expecting their second child together. The pair married in 2010 and are parents to a daughter named Louisanna Ray Kimmel, born in 2009.

News broke in March 2013 that the couple, who have been off and on since 2009, were engaged. The "Heroes" and "Nashville" actress, however, didn't bother to confirm heraffianced status until a visit to "Live! With Kelly and Michael" in October. 

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The way Klitschko proposed was "very sweet and simple and genuine," she told Brides magazine recently (via People). 

The two had broken up for about a year in the middle of their time together, saying it was difficult to have a relationship between two continents, but she went public with their reunion early last year. 

Babies appear to have been on the actress-singer's mind for a while. 

"I’ve lived a very big life, and I don’t feel my age, and I feel like I was born to be a mother. ... Motherhood is the most beautiful, exciting thing, and there’s nothing that I feel like I can’t accomplish while having children in my life," she toldGlamour in May 2013. "I would sacrifice having more years of being wherever I want whenever I want for years with my kids."