OHMYGOSSIP — Britney Spears‘ comeback was almost ruined by a pregnancy scare. The singer, who recently just signed a big bucks Las Ve­gas contract, was apparently worried that she was with child.

“Britney was a nervous wreck be­cause she was afraid she was pregnant,” a source revealed to the National Enquirer.

“She was having waves of nausea, slight weight gain, drastic changes in her moods and intense cravings for certain foods.”

Spears also raised eyebrows when she vomited aboard a helicopter that was transporting her to a promotional extravaganza in the Mojave Desert. The event was held to celebrate the two-year, $30 million contract she signed with Sin City’s Planet Hollywood.

The sickness is what pushed Brit to fi­nally take a pregnancy test – and it came up negative.

“Britney now thinks that her symptoms were just nervous energy about her up­coming show,” the source said.

Britney Spears