These scene-stealing ladies are about to lose a lot of sleep. See which moms-to-be will trade in flashing lights for nightlights and front-row seats for rocking chairs and diaper duty.

Natalie Portman

Christina Applegate

Kim Zolciak

Penélope Cruz

Jane Krakowski

Pink

Alicia Silverstone

Mariah Carey

Devon Aoki

Selma Blair

Victoria Beckham

Kate Hudson

Tia Mowry

Jennifer Connelly

Emma Bunton

Rachel Zoe

Marion Cotillard

Jewel

Laila Ali

Gretchen Mol

Toni Collette