Ah, celebrities...we love to watch them and we especially love to watch their bumps grow.

So who is preparing to pop in 2013? Meet this year's bumper crop of famous mums-to-be.

Some we've known about from the get-go as they kindly tweeted a pic of the pregnancy test stick or posted their ultrasound video on YouTube, others may come as a surprise as they've been a little more stealth about baking their little bun.

Stay tuned as we count down to the birth days of Kimye, Duchess Kate, Jessica Simpson and some of our own homegrown A-listers.


Photos courtesty: Getty Images, Instagram, Twitter, hollymadison.com, whosay.com