LOS ANGELES, California (X17online) - Jessica Simpson says her sister Ashlee is so ready to give birth, she’s trying to induce labor.

“They’re going to have to. It’s already developing really quick,” People Magazine reports Jessica said on The Ellen DeGeneres Show taped Monday .

Jessica went on to say that Ashlee – described by husband Pete Wentz more than two weeks ago as due at any moment – has already tried other ways to begin labor.

“Different foot massages and stuff,” Jessica told DeGeneres in the show airing Wednesday. “I don’t know. I think she’s really just jumping around trying everything right now.”