The Jennifer Aniston rumors have fueled once again after she showed to the We're The Millers red carpet premiere in a skintight dressed that revealed a bigger than usual stomach.

The 44-year-old actress who is planning a wedding to fiance Justin Theroux flaunted her toned and tanned body in a plum-colored Burberry satin dress. 

She posed for pictures while showing off her diamond engagement ring and touching the top of her stomach.

Her co-stars in the funny movie Jason Sudeikis, Emma Roberts, Will Poulter and Ed Helms, all joined her on the red carpet. 

Whether or not Aniston is pregnant, a baby is definitely in her future plans with Theroux. 

"Jen has begun IVF treatments, and if all goes as planned, she'll be pregnant by her 45th birthday on Feb. 11 -- if she's not already. 'She's ready,' a source said, adding that she will be "an amazing mom.'"

She covered Glamour magazine's September issue and talked about children.

"I know Justin [Theroux, her fiance], for instance, has extremely amazing paternal instincts," Aniston said. "Because [growing up] he had to sort of become the parent. I think when you have to become the parent when you're a younger person, you learn those instincts."

During the interview conducted by her co-star Sudelkis, Aniston revealed how maternal she was towards co-star Emma Roberts on the We Are The Millers set. 

"But she's wise beyond her years," she said, adding, "I think I've done it all throughout my life," she said.

As Aniston and Theroux are approaching their one-year engagement mark, she said she's in no rush to tie the knot. 

"We just want to do it when it's perfect, and we're not rushed, and no one is rushing from a job or rushing to a job," the actress told Associated Press Saturday. And, you know, we already feel married."

We're The Millers hits theaters next Friday, August 7.