Ah! It's A Photo Of Beyoncé Pregnant In A Bikini!
You'll find more photos of the diva on vacation on her new Tumblr. The site is reportedly in honor of her fourth anniversary with Jay-Z.

Alert: Beyoncé also tweeted for the first time this morning:
Hey World, It's B!I'm so excited to invite you to my new beyonce.com - we've been workinghard, and it's finally ready for you XO
— Beyonce Knowles (@Beyonce) April 5, 2012