Kevin Federline's Ex Says Brit and Hubby Making a Big Mistake

While Britney Spears and Kevin Federline may be over the moon about her pregnancy, Shar Jackson believes they are making a big mistake.

Federline's ex-fiancée and mother of his two babies thinks Spears is in over her head. "A baby is not a dog. You can't just put it away," the actress tells In Touch Weekly. "I don't know if Britney realizes how hard it will be."

Further, she claims Federline is overwhelmed with the whole situation. "He has told me that it is really a lot, what with a breakup, a wedding and two babies in a year," Jackson says.