Heidi Klum has limits: Four kids! "That’s pretty much it," Klum, who is now pregnant with her fourth child with singer Seal, tells Extra. "I'm very happy with four. We’re both happy with four…. With four I think we're complete." In fact, the singer announced that Klum is pregnant at one of his concerts last week without clearing it with her. "It kind of came out faster than I wanted it to," Klum said. "He was just on tour, so he kind of told everybody. He's allowed to obviously. We're very excited." (Photo: WENN)