Katherine Heigl is putting off kids, because she's terrified pregnancy will turn her into a bloated mess.

The actress is keen to start a family with husband Josh Kelley, but she's convinced she'll pile on weight - and lose her slim physique forever.

Heigl tells Star magazine, "One day, sure, but pregnancy scares me. I know I'll be one of those women who looks pregnant all over the body. I'll get fatter and fatter from my toes up."

Katherine Heigl stars in The Ugly Truth, which opens tomorrow in theaters.

(This news article provided by World Entertainment News Network)