Victoria Beckham is craving Lucozade and sweets.

The pregnant fashion designer was spotted sipping the fizzy energy drink between bites of Thorntons toffee during a recent shopping trip.

A source told the Daily Mirror newspaper: "She was shopping in Selfridges last week and stopped every few minutes for a toffee and a chug of orange pop."

The former Spice Girl - who turned 37 on Sunday (17.04.11) - is expecting her first daughter with her soccer player husband David Beckham, with whom she already has three sons, Brooklyn, 12, Romeo, eight, and six-year-old Cruz.

It seems Victoria's cravings for sweet treats are evolving as early on in the pregnancy she was reported as having a particular penchant for marmalade on toast and tea.

A source said: "Victoria is having a lot of tea and toast with lashings of marmalade. She can't get enough of the stuff. Mostly she's been having it on toast, accompanied by lots of cups of tea."

To celebrate her birthday, she enjoyed a family lunch with David, their kids and her parents Tony and Jackie Adams in Beverly Hills' French restaurant Bouchon Bistro at the weekend.

She wrote on her twitter page: "Thank u so much for such beautiful birthday messages!!!! So many beautiful flowers and messages!!!! having a wonderful day with my four boys!!!! x vb (sic)"