Shar Jackson: Federline's Struggling With Spears' Pregnancy  5/1/05

Britney Spears' one-time love rival Shar Jackson fears her ex-fiancé Kevin Federline can't handle the pressure of fathering the singer's child so soon into their roller coaster marriage.

The Moesha actress claims the 27-year-old dancer told her he's struggling to cope with Spears' pregnancy, because it has happened within months of the birth of Kaleb, his second child with Jackson, his shock wedding and the beginning of his burgeoning pop career, reports British newspaper the Daily Star.

She says, "Kevin has told me he's under intense strain and he doesn't know if it will all fall apart.

"In the past year he's broken up with me, been through a bizarre wedding and become father to a new baby, with me, and another on the way with Britney."