Kingdom Hearts: Eaten by Monstro a Second Time?

So I just picked this game up again after not playing for maybe a year or so. I tried going to the bottom of my map to go through one of the worm hole things so I could unlock new worlds, and Monstro ate me. According to my journal, I already did the Pinocchio stuff, and I did manage to get down to the bowels somehow, but I can't find a way out of this whale. I went to a save spot but there was no option to go to the gummi ship. Every online walk-through only covers what to do when you're on the Pinocchio level. The last place I remember finishing was Wonderland (or whatever the game calls it). How do I get out of the whale?