Mila Kunis, Ashton Kutcher expecting 1st child; Stacy Keibler announces pregnancy

Former "That '70s Show" stars Mila Kunis and Ashton Kutcher reportedly are expecting, while newly married model-actress Stacy Keibler has formally announced her pregnancy.

E! claimed Sunday night that Kunis and Kutcher, who have dated since mid-2012, are expecting their first child together. The entertainment network noted that Kunis, 30, was photographed in late February wearing a large and conspicuous diamond ring, leading to speculation she and Kutcher, 36, had become engaged.

Us Weekly and People each later reported the pregnancy claim, citing independent confirmation. Neither star has commented on either an engagement or a possible pregnancy.

Kunis will guest-star in Kutcher's CBS sitcom "Two and a Half Men" this season.

Meanwhile, Keibler -- a former Baltimore Ravens cheerleader, WWE wrestler and "Dancing With the Stars" contestant -- Monday tweeted, "Look what we've got cooking! A Bun'dle of love!" and linked to an Instagram photo of a baking bun in an oven.

Keibler, 34, and tech entrepreneur Jared Pobre, 39, whom she married March 8 in a small sunset ceremony on a Mexican beach, additionally told People magazine Monday in a statement, "More blessings!! We're an elated family-to-be!"

Keibler dated George Clooney before the two broke up in mid-2013, over what People said at the time was her desire to have children and a family, circumstances Clooney has repeatedly said are not in his plans. E! News disputed this reason for the relationship ending, noting Keibler had told it in October 2012 that marriage for her "is not on my radar at all."

SEE PHOTOSKunis and Kutcher's sweetest moments