Kris Jenner is ''really nervous'' about her daughter Kim Kardashian giving birth baby in Los Angeles next month.

The reality TV star and manager, who has six biological children and four-step children, admits she is anxious about her 32-year-old daughter, who will welcome her first child with her rapper boyfriend Kanye West in early July, going into labour and how she will cope with motherhood.

Kris told Ryan Seacrest on his KIIS-FM radio show on Friday (31.05.13): ''I'm really, truthfully nervous about Kim giving birth and getting through this whole baby thing. That, for me, I'm excited and anxious at the same time.''

While Kris is worried, a source close to Kim insists that she has no fears about child birth.

The insider told UsMagazine.com: ''Kim is not scared at all and has no fears.''

Her younger sister Khloe, 28, also revealed that she thinks people will only realise how difficult Kim's pregnancy has been once they see the new series of 'Keeping Up With The Kardashians'.

She said: ''Kim's pregnancy ... has been much more difficult than Kourtney's and so you get to see that. And I think it's really vulnerable of Kim to show that stuff because it's not all pretty.''