Kim Kardashian is reportedly livid over news that her ex-boyfriend Reggie Bush is expecting a child.

The reality star dated the professional American football player for several years before getting married to and quickly divorcing from Kris Humphries last year.

Although Kim is currently in a relationship with musician Kanye West, even calling the rapper "the one", she apparently still has a soft spot for Reggie.

"Kim is very upset that there are reports out there Reggie has gotten [his girlfriend Lilit Avagyan] pregnant," the source revealed to Radar Online.

"Kim had pressured Reggie for a very long time to get married while they were together because she wanted to have a family with him. Reggie just thought that Kim placed too much of a priority on her fame and reality television though and he wanted none of it. Reggie was a part of the Kardashian family for over five years and deep down Kim has always held out hope that they would end up together, even though she married Kris Humphries.

"She feels it is a slap in the face that Reggie would consider having a baby with this woman when he wouldn't with her."