Ready, set, ho-mewrecker.

It sounds like Jessica Simpson may be sharing more than Sweet Kisses with rumored beau Dane Cook. The National Enquirer is claiming that Jessica recently suffered a scare even more frightening than the thought of dark roots or traveling without BFF Ken Paves – a pregnancy.

"She definitely took an early pregnancy test and, knowing Jessica, she must have been freaking out," an insider told the tabloid. "Jessica is a good girl - and a surprise pregnancy isn't something she could go to her agent or her parents about. And of course she no longer has Nick to confide in."

Representatives for Jess deny that the pregnancy scare ever happened, but sources claim that the possibility makes sense given her new relationship with Employee of the Month co-star Cook.

"Falling for Dane took her by surprise and she wasn't prepared for an intimate relationship," the insider revealed. "Everyone in Jessica's inner circle knows that she and Dane are 100 percent a couple. He spends a lot of time at her new home in Beverly Hills and now they're starting to go out in public. They even ran into Nick one night in Los Angeles, but everyone seemed cool with it, which means they've all moved on."

Including, although probably not quite as happily, Dane’s now ex-girlfriend Raquel Houghton, who was living with the comedian when he hooked up with Jessica. Just another stop on his Tourgasm.