What with getting ready to get back into top shape with the help of VH1’s reality show “Celebrity Fit Club,” Kevin Federline seems to have everything planned out for him. Except for one thing, the National Enquirer claims (story via PopCrunch): another baby. Federline’s current girlfriend, Victoria Prince, is pregnant with the couple’s first child.

Kevin and Victoria have been a solid couple of many months now, with speculation even saying, at one point, that she might become a regular on a rumored upcoming show Kevin was thinking of doing, which would have also included the two boys he has with pop star Britney Spears. However, according to what insiders are saying for the aforementioned tabloid, it seems that a child was actually the last thing on Federline’s mind, since he looked none too pleased when Prince told him about the pregnancy.

“Pro-volleyball Victoria Prince is reportedly several weeks pregnant with what will be Federline’s fifth child, The National Enquirer has learned. Last summer, Victoria quit working to accompany Kevin around the globe. After one pregnancy false alarm earlier this year, the athlete begin to suspect that she was pregnant after the couple spent two weeks in Las Vegas in late September,” PopCrunch writes.

“Kevin – who will be whipping himself into shape on the new season of VH1’s Celebrity Fit Club – already has four children; daughter Kori, 7, and son Kaleb, 5, with ex Shar Jackson and sons Sean, 4, and Jayden, 3, with Britney; and was less than pleased with the idea of doing diaper duty with yet a third ‘baby mama.’ A source says: ‘The test was positive. She told Kevin that she was pregnant, but he didn’t seem happy to hear the news’,” the e-zine further says.

As of now, neither Federline nor Prince has been available for comment on the above rumor. However, granted it is true, and the two do decide to keep the baby, it’s almost certain that will in no way influence whatever understanding (financial or otherwise) Federline has with ex-wife Britney Spears.