Credit: Fayes Vision/WENN Photo: Kaley Cuoco and Ryan Sweeting at the Bow Wow Beverly Hills Event on October 27, 2013

Actress Kaley Cuoco had a super-fast romance with tennis player Ryan Sweeting — getting engaged after just three months of dating — but the ring isn't on her finger due to a bun in the oven.

Ryan popped the question toward the end of September, and shortly afterward the National Enquirer said Kaley was desperate to get pregnant before they got hitched.

Apparently rumors like that have been getting under Kaley’s skin, since she tweeted last night (November 9): "I would like to make something very clear to anyone who cares. IAM NOT EFFING PREGNANT. Do with that what you will."

Don’t do anything crazy with it, she’ll come after you!

In early October, the Big Bang Theory star told Us Weekly, "We are too busy to wedding plan. In a year we will start talking about it. We are enjoying being engaged."

They don’t even have to plan a wedding! Last week, both Kaley and Ryan were on Ellen DeGeneres’ show and Ellen staged a cute fake wedding for the couple. Watch it below. Very sweet. But there’s no baby on board … yet!

Sources: Twitter, Gossip Cop