PHOTOS: Pale Kim Kardashian Looks Tired and Curvier Than Ever

Kim Kardashian battles her pregnancy cravings by munching on some healthy porridge.

And she showed off her ever-growing baby bump - as well as her well-rounded bum - in a pair of casual yoga pants and a grey sweater.

The curvaceous 32-year-old headed to the gym early on Tuesday morning downing some Quaker Oatmeal Express as she went.

Kim looked pale and tired, going make-up free as she clambered in to her waiting vehicle ready for the exercise session.

However her sleepy exterior didn't mean she wasn't ready for action, she wrote on Twitter: "Rise and grind! Gym time."

Later in the day Kim transformed her scruffy, washed-out look and re-emerged looking tanned and fabulous in flattering black leggings and T-shirt combined with orange strappy heels and a light chiffon shirt.

Meanwhile, it's been revealed that Kim's mum Kris Jenner will be called as a witness in her divorce trial.

Kim's legal team listed the Kardashian family matriarch on a document which was filed on Monday in Los Angeles ahead of the May 6 trial date for the next hearing in her ongoing battle with estranged husband Kris Humphries.

According to records obtained by E! News even Kris himself will be called to testify about their relationship and their prenuptial agreement.

Kim filed for divorce from professional NBA basketball star Kris in October 2011 after just 72 days of marriage.

Kris, 28, then filed for an annulment - accusing her of duping him in to a fraudulent marriage.

In a new trailer for Keeping Up With The Kardashians Kim is seen breaking down in tears over her fears her baby with current boyfriend Kanye West will be born while she is still married to Kris.

The pair is expected to appear in court this Friday to try and arrange a settlement prior to the trial in May.