But the actress has put paid to reports she's expecting a baby with her husband to be.
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'I would like to make something very clear to anyone who cares," she wrote on Twitter, before writing in capital letters that she is not pregnant. "Do with that what you will."
In September Representatives for the Big Bang Theory actress confirmed Kaley and Ryan's intentions to wed. He proposed three months after they started dating with a 2.5 carat sparkler from Red C Jewels, reportedly worth $65,000.
The Bahamian-born tennis pro and the actress made their public debut as a couple at a pre-Emmy Awards bash in September, and have been sharing loved-up pictures of each other ever since.
"It's only been three months but she knows Ryan is the one," a source told US Weekly. "When you know, you know."
The 27-year-old has said that she was completely surprised by her handsome beau's proposal as he "actually started a little fight with me and threw me off."
"I was like 'Oh my God, things aren't great.'" added the actress, but the Ryan's decoy went perfectly to plan. "He surprised me at the end of the night ... [when] he popped the ring out. It was amazing," she told Entertainment Tonight, speaking from the set of her new film The Wedding Ringer.