"Kim Kardashian thinks she is having serious problems her for not being able to get pregnant for the second time" - Insider reveals

It's no news that Kim is having difficulties trying to get a younger sister or brother for Fashionista North West,

Hollywood gossip reports that, Kim Kardashian is NOT trying to get pregnant to save her marriage, but she does admit it's been a “challenging” time trying to conceive a second child.

Fortunately, her younger sister Khloe Kardashian can relate to the stress, heartbreak and pain of infertility, and has been there for her all the way.

“Khloe is the only one in the family that Kim really can turn to for advice,” a family insider says, referring to Khloe's efforts to have a baby with Lamar Odom.

Talk about a blessing in disguise that it never worked out for Khloe, but that's neither here nor there right now. The point is, she has been Kim's rock.

More than two years later, Khloe has a chance to repay her sister for being there for her, as she “just gets what she is going through and how hard it is.”

The 34-year-old mother to North West, 1, and rapper husband Kanye West, 37, “have been trying for several months now" to get her pregnant again.

"Kim wanted the baby to be out in time for summer,” the source says, but that's not happening, and Kim is SO upset she can't get pregnant again.

“Kanye keeps telling her that it will happen and not to worry, but she is worrying. She is beginning to think that there is something wrong with her.”