It is hard to imagine that Rudy from The Cosby Show is pregnant with her first child. Actress Keshia Knight Pulliam, 37, recently celebrated the anticipated arrival of their first child with a baby shower in Georgia. Her sorority sisters from Delta Sigma Theta serenaded her inside the Mason Art Gallery in Atlanta. She says the baby's father is estranged husband and former NFL linebacker Ed Hartwell. But he says he's not so sure and has demanded a paternity test.