It's only Tuesday but already this has been a huge week in celebrity baby news. Not only did Blake Lively announce her pregnancy with a beautiful editorial on her new lifestyle site, Preserve, but one of our favorite fashion stars, Coco Rocha, also took to the web with some news of her own. While we're sending out a huge congrats to both ladies (and their hubbies, Ryan Reynolds and James Conran, respectively), let's take a look back at some of our other favorite celebrity baby announcements in recent years. Because even A-listers can't help but share their big news in a big way.