The pregnant 16-year-old wore a T-shirt emblazoned with the phrase "The Rumors Are True" during a trip to Babies "R" Us in her hometown of Kentwood, Louisiana, on March 27.
She also flashed an engagement ring.
The outing comes days after Casey Aldridge's cousin confirmed exclusively to Usmagazine.com that the two were getting hitched.
"He proposed ... and she accepted," Tina Robinson told Us.
She said didn’t know whether they would wed before or after Jamie Lynn delivers.
“They probably weren’t expecting [the proposal] to be, like, right now, but with her being pregnant, that really pushed it up,” Robinson told Us.
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