Who's Due Next?

We're counting down to the birth dates of the newest celebrity babies!

ASHLEE SIMPSON & EVAN ROSS

The singer and her new husband married in August and are now expecting their first child together. "I'm so in love and we've got amazing things going on," the Mockingjay actor told PEOPLE of Simpson (mom to 6-year-old Bronx with ex-husband Pete Wentz). Good thing there are already two babysitters on tap: his mom Diana Ross and her sister Jessica Simpson.