Kim Kardashian West has gained 24kg during her pregnancy so far

Los Angeles Kim Kardashian has gained 52lbs (24kg) during her pregnancy.

The reality TV star - who has previously called pregnancy the "worst experience of my life" - admitted she has piled on the pounds while expecting her second child.

She tweeted: "Ok I'm 52 lbs up today....and I still have 6 weeks to go! I got my work cut out for me!!!!"

Meanwhile the 35-year-old admitted it's time to take a break from her killer high heels as her ankles and feet are starting to puff up the closer she gets to her due date.

Speaking to Vogue magazine, she said: "I'm close to completely relaxing. It's getting hard. My feet are starting to swell. I was getting on a plane and my feet were swollen. I need a little break where I take them off for a few hours."

Despite suffering from water retention in her lower legs, the Keeping Up with the Kardashians star hasn't been struggling to fight off cravings like when she was carrying her first child, daughter North, now two.

She explained: "I don't crave anything this time, it's so weird. But I eat more carbs than usual."

Meanwhile, Kim and her husband Kanye West, 38, are set to welcome their second child, believed to be a baby boy, into the world around Christmas Day.

But her festive due date means her plans for the celebratory period are all up in the air at the moment.