Kate Middleton's Best Pregnancy Pics!

Check out our favorite maternity shots of the royal mom-to-be!

The royal baby watch is heating up.

Just days ago, photographers started lining up at St. Mary's Hospital in London, where Kate Middleton is set to give birth to her first child with Prince William.

Before the Duchess of Cambridge delivers her and Prince William's baby boy or girl, though, we took a look back at her best maternity snaps.

Check out the pregnant royal's best baby-bump photos!