Kate Upton
Kate Upton has sparked pregnancy rumours after she was spotted wearing loose fitting clothing.t (Reuters)

American model Kate Upton has sparked pregnancy rumours after she was spotted wearing loose fitting clothing.

According to a report in Hollywood Gossip, the 22-year-old - who is dating Justin Verlander - was wearing a baggy dress while shopping with model friend Lily Aldridge, which has "led to increased speculation that Kate has packed on some pounds recently."

The website further claimed that Upton made a toast with water instead of champagne during a dinner date with Verlander.

As the pregnancy rumours make the rounds, Upton, a native of Melborne, Florida, addressed her body issues during an interview with Elle magazine.

"When I first started modelling, I was a normal catalogue model," she said.

"Then, I became a woman, and I was really excited about becoming a woman. Because I'm from Florida, it's all about being in bathing suits. It's a different view of beauty there. You are ugly if you don't have a curvy body. And I didn't have one, and then I got one, and thought, "Yessss!"'

"And then people say: "Oh, wow, you're healthy,"' Upton said.

"And you're like, "Wait – what? I've been begging for this body my whole life!"' she added.