Prego and Still BALLIN'
For 30th Bday in Venice
B and Jay-Z held court aboard the super luxurious yacht "Odessa" ... for her big 3-0 celebration -- which included visits from celeb pals Gwyneth Paltrow and Erykah Badu.
Beyonce was seen on-deck checking out her not-yet-visible baby bump.
Even her fetus attends better parties than you.