Miranda Lambert's mom, Beverly Lambert, has heard all the rumors about a baby being in the singer's belly.

And she's quick to dismiss them. She says she'd be the first to know if her only daughter was pregnant, and she hasn't heard a thing.

“They are totally not expecting!” Mrs. Lambert told RadarOnline. “And I’m fairly certain that I would be the first person to know.”

A baby would be the first grandchild for Beverly and Rick Lambert (pictured). Miranda also has a younger brother named Luke. He was her guest at the 2011 ACM Awards in Las Vegas.

Time with husband Blake Shelton has been difficult for Lambert to find in recent weeks. He's parked in Los Angeles as 'The Voice' wraps up its current season, while she's just begun another leg of the Locked and Reloaded Tour with Dierks Bentley. This weekend, she'll play shows in Arizona, New Mexico and Colorado.

For now, that puts those pesky pregnancy rumors to rest.