Chrissy Teigen only announced that she was pregnant less than a week ago, and people are already obsessing over her baby bump.

While she did show off her teeny-tiny bump for the first time at an event last week, the photo she posted to her Instagram this past weekend showed a much larger bump, causing people to suggest that she is having more than one baby.

"Somebody is early to the party," she captioned the photo, which shows a drastic change in just a few days. After years of trying to conceive with her husband John Legend, all the 29-year-old model was trying to do was show how proud and surprised she was over her already growing belly.

Several of her followers decided to share their own opinions in the caption section of the photo as well as on Twitter, causing somewhat of an outrage, according to Us Weekly.

"Yup it's definitely twins, the bigger the bump the bigger the surprise," one user wrote, while another said, "damn you got big so fast! My bestie is due in Feb and she's ½ your size. Not twins? Probably triplets!"

Teigen, who is known for speaking her mind on social media, was not pleased with these comments on her pregnancy and decided to respond.

"Good thing I am unoffendable or this would be a rough few months," she tweeted, adding in the users tweets, which have since been deleted. "I did IVF. One at a time," she wrote. "It isn't twins. I can see the damn thing. Get out of my uterus!"

She then continued on, explaining her outburst a little more. "It's my own karma! I love bumps so I loved saying how round/big/beautiful they are on others. Don't worry, friends," she wrote. She then asked one user to "please stop" and explained how she is having ultrasounds every few days and didn't make the announcement early on.

"No more preg tweeting for me, lesson learned!" she finally wrote. "Back to food and reality TV and hay things."