Kim Kardashian has turned to Madonna and Gwyneth Paltrow's personal trainer for tips on keeping fit during her pregnancy.

The reality TV star is expecting her first child with boyfriend Kanye West, and she is already focusing on her health by teaming up with Anderson to devise a safe workout routine.

In a post on her blog, Kardashian writes, "Tracy Anderson is keeping me in shape! She is helping me make the adjustments necessary to keep me feeling happy, healthy and most importantly create a workout plan that is safe for the baby.

"It's really important for me to have a fitness routine that works for my body and my schedule and I'm really happy with the workout plan Tracy is working with me on."

West revealed their baby news in front of hundreds of concertgoers during a show in Atlantic City, New Jersey on Sunday.

Slideshow: Kim Kardashian's Kurves