Jennifer Aniston might be pregnant, possibly showing off a baby bump before her wedding to Justin Theroux at "We're the Millers'" New York City movie premiere at the Ziegfeld Theater on Thursday, according to Hollywood Life.

The 44 year-old-old wore a lilac, strapless Burburry form-fitting dress that seemed to show a slight belly bulge. Premiere photos of Aniston with a possible bump have ignited more rumors that she could be expecting a child with her actor fiance, reported HL.

In fact, cameras have caught Aniston in looser clothing lately. Her wardrobe changes have suggested that she could have a baby on board though the star has yet to confirm or deny the speculation.

She recently hinted that being a mother came easy to her to Glamour.

Her "Millers" co-star Jason Sudeikis interviewed her for the magazine, saying that he noticed her "maternal instincts" with costar Emma Roberts on set.

"I did," Aniston responded. "But she's [Roberts] is wise beyond her years."

Sudeikis then asked the "Friends" alum if being someone with maternal instincts was a role that she grew into or had been doing all her life. 

"I think I've done it all throughtout my life," she replied.

Aniston has been engaged to Theroux for more than a year now. The couple are still in good standing and hope to walk down the aisle soon, according to reports.

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