"I would like to make something very clear to anyone who cares," she posted on her twitter account on November 29. "I AM NOT EFFING PREGNANT. Do with that what you will."

Big Bang Theory star Kaley Cuoco made it crystal clear through twitter that she is not pregnant.

The pregnancy rumors all started when Cuoco and she fiancé Ryan Sweeting was featured in an online blind item, claiming that the couple was too eager to get engaged with only three months of being together because the 27-year-old star was pregnant.

During the couple's appearance on The Ellen DeGeneres Show on November 7, Cuoco revealed that she knew instantly that Ryan Sweeting was the one even after knowing him for just two days.

"From day one I just knew immediately and it's been magic. We have all the same family friends. We grew up with the same people, we just never met. So I kind of feel that I've known him my whole life.

"I know that it seems a little crazy on paper," she said. "But it's what works for us."

During the Veuve Clicquot Polo Classic on October 5 couple who has just been engaged told reporters that they haven't made any wedding plans yet.

"We are too busy to wedding plan," Cuoco says. "In a year we will start talking about it. We are enjoying being engaged."

Prior to Kaley's clarification of the pregnancy rumors, the "Big Bang Theory" star and her professional tennis player fiancé announced their engagement after three-months of dating.

"Kaley doesn't care if she gets pregnant before she and Ryan walk down the aisle. In fact, she'd be thrilled if she did. That's because they don't plan on tying the knot for at least a year," an insider told National Enquirer.

Ryan proposed with a 2.5-carat ring from Red C Jewels that allegedly cost $65,000, three days after they went public during the Emmy Awards in Los Angeles.

Kaley Cuoco immediately posted on twitter: "Flying high, I could literally touch the sky with you . . . "

'[She's] never felt this way. She knows this is it. And the ring is gorgeous!' a friend revealed on Us Weekly.