Celebrity Baby Boom

See the latest star moms-to-be (including Julia Roberts, Liv Tyler and more) as they prepare for parenthood. By Serena Kappes

LAURA DERN & BEN HARPER

"For the first time in my life, everything in my life makes sense," Laura Dern, 37, told PEOPLE about becoming a mom to son Ellery, now 3. Dern and her fiancé, musician Ben Harper, will welcome their second child this winter.