Chrissy Teigen Fires Back Over Baby Bump Photos

The former supermodel received criticism after posting a picture of her growing baby bump.
2:32 | 10/20/15

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Transcript for Chrissy Teigen Fires Back Over Baby Bump Photos
We're still auditioning. Chrissy Teigen firing back against online critics who say she isn't telling the whole truth about her pregnancy after posting a baby bump picture. "Nightline" anchor juju Chang has the story. Reporter: A photo of Chrissy Teigen's baby bump sparking criticism about the size of her pregnant belly. The model and TV host is known for sharing her life in realtime with millions of social media followers. So it may come as no surprise she's doing the same with her pregnancy writing somebody is early to the party. Thousands of congratulatory messages pouring in but along with those, a barrage of body shaming comments about the size of her bump. You got big fast. My bestie is due in feb and she's half your size. Not twins. Probably triplets. Teigen who didn't disclose her due date defending herself. I did ivf one at a time. It isn't twins. I can see the thing. Get out of my uterus. There is a multitude of factors that goes into how she appears when she's pregnant. At the end of the day that's nobody's business other than hers and her doctor's. Reporter: It was just a week ago that Teigen and hubby John legend took to instagram to reveal their news. John and I are so happy to announce that we are pregnant. As many of you know we've been trying for awhile acknowledging they struggled to conceive. One Teigen made public just last month while co-hosting "The fablife." John and I were having trouble. We would have had kids five, six years ago if it happened but my gosh it's been a process. Reporter: To the dismay of her many fans the scrutiny surrounding the photo may have turned the star off from sharing the remainder of her pregnancy writing, no more preg tweeting for me. Lesson learned. But despite the negativity Teigen already showing she's one tough mom-to-be tweeting, good thing I am unoffendable or this would be a rough few months. For "Good morning America," juju Chang, ABC news, New York. Oh, it's just beginning. How many times do people say, sure you don't have twins in there? I mean -- Did you swallow a basketball. I got that. We were trading insults. Some can't be repeated. Said to your face. Oh, yeah, really. Your due date is that far away. Are you sure you got it right? Thanks, yeah. So -- If you've been on social media people have something to say about it. Those are the comments they were able to share with us. They shared others with us.

This transcript has been automatically generated and may not be 100% accurate.

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