--Click link "visibly squirming in her chair" to see video of that moment.--

Excerpt: "Biggest Loser" host Alison Sweeney gave quite a convincing performance during a taping of "The Ellen DeGeneres Show" on Thursday, when it appeared the very-pregnant Sweeney was going into labor during her interview with Ellen.

While an online report suggested Sweeney, 31, actually went into labor during her interview with Ellen, a rep for the actress told Access Hollywood it was merely part of the show.