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Bridget Moynahan is a married woman!

The "Blue Bloods" actress, 44, wed businessman Andrew Frankel in the Hamptons in New York on Oct. 17 -- and shared a beautiful photo from their wedding with fans via Instagram afterward.

"Oh, by the way, guess what I just did," the actress captioned the snapshot with her new husband, adding the hashtags "#sohappy #perfection #friends #family #forever."

People reports that the groom is from New York and serves as co-president of Stuart Frankel and Co., a Wall Street institutional brokerage firm. "They met each other through a friend and she has been on cloud nine ever since," a source told the magazine.

The wedding news came as a surprise to many since Bridget was last publicly linked to director Joseph "McG" McGinty Nichol. Before that, she famously split with New England Patriots quarterback Tom Brady -- whom she'd dated for three years -- while pregnant with their son Jack in 2006.

People also reports that Bridget and Andrew, who asked guests to donate to the Hole in Wall Gang Camp in lieu of wedding gifts, will be blending their families: She brings son Jack to the union, while the groom has three older boys.