JAY Z WANTS BEYONCE TO GET PREGNANT ... BUT BEYONCE DOES NOT!!!

August 07, 2008. Trouble may be brewing in the marriage of rapper Jay Z and his R&B wife Beyonce Knowles. MediaTakeOut.com just EXCLUSIVELY learned that the couple is having their first marital disagreement - and it's over having children.

The insider - who is VERY close to Jay Z tells MediaTakeOut.com, "Jay Z is ready to have children. He [and Beyonce] dated for years, now they're married ... and for him - it's time for children."

But the insider claims that Beyonce is NOT looking to have children for at least another 2 years - and possibly longer. The insider explained to MediaTakeOut.com, "Beyonce is very career focused. She has another album due this year and a couple of major film projects in the works. Her career is moving at 90 miles per hour and she's not trying to have it slowed down by a baby."

And the insider claims that this difference is causing significant strain on the young marriage. MediaTakeOut.com's source tells, "[Jay Z and Beyonce] are best friends so it's not like they're fighting over it ... but they both feel very strongly about [their positions] - if one of them doesn't relent, I think it could be a big problem."

Developing....