Los Angeles: Singer Jessica Simpson is reportedly pregnant with her fiance, Eric Johnson's baby.
The 31-year-old reality TV star fuelled baby speculation when she refused to toast fiance Johnson's 32nd birthday with champagne at a recent party, reported in a magazine.

"She's already having kooky cravings, especially nacho chips dipped in chocolate, which satisfies her urge for salty and sweet. She's also developed a taste for cheesy popcorn and non-alcoholic margaritas," a source said.

She and Johnson plan to wed in November and the baby is due in the spring 2012.

Simpson, who was previously married to singer Nick Lachey, has made no secret of her desire to become a mother and said she couldn't wait to have kids with Eric.

"I definitely see myself having a family with Eric, so that's exciting to think about," she said recently.

The news will also please her mother Tina Simpson as she said that she would like more grandchildren to go with two-year-old Bronx, son of daughter Ashlee Simpson and estranged husband Pete Wentz.

"Obviously I'm looking forward to having more grandkids. Bronx is the love of my life. I don't mind boys or girls; I'll take anything I get. I'm not picky," she had said.