Ashlee Simpson's labour massage

Ashlee Simpson has been trying "different foot massages" to induce labour.

The 24-year-old pop star - who is expecting her first child with husband Pete Wentz - is so desperate to give birth she has been testing out a variety of treatments which are said to bring on the labour process.

Ashlee's sister Jessica told US TV talk show host Ellen DeGeneres yesterday (17.11.08): "She has been trying different foot massages and stuff. I don't know. I think she's really just jumping around trying everything right now."

Jessica - who denied internet reports suggesting 'Little Miss Obsessive' singer Ashlee had gone into labour over the weekend - also revealed Ashlee and Fall Out Boy rocker Pete are thinking about medically inducing labour if it doesn't naturally happen soon.

She added during the show, which airs tomorrow (19.11.08): "They're going to have to. It's already developing really quickly."

Pete revealed two weeks ago that Ashlee was due "at any moment", and sparked rumours his wife was giving birth after cancelling an appearance on hit US TV show 'Larry King Live' due to "breaking news and scheduling conflicts".