I did my last trip with out a baby a year ago this weekend, i was only 10 weeks and when i booked didn't think i would be pregnant. But we had a blast, and i ATE EVERYTHING!
I went on the following in (MK,Epcot DHS we didn't go to AK):
Buzz Light year
Pirates of the Caribbean
Haunted Mansion
Carousel of Progress
Transit mover
River Boat
The Sea
Living with the land
Project tomorrow
Figment
Movie ride
Toy Story Mania
Plus lots of shows (Laugh Factory, Hall of Presidents DH Favorite, Country Bear Jamboree, Turtle talk with Crush, Fantasmic, Muppet Vision etc)
Would have done Small World but it was closed
I am sure i went on others, or there were things i could have gone on but didn't. I was going to do Soarin but didn't have a fast pass and didn't want to wait, things like that. I enjoyed the trip a ton, and even got some small items for the baby, we did a lot of shows,and stuff things we sometimes skip. I would recommend if you want to start trying, try, unless you LOVE the rides that you def can't go on, Tower of terror, Space Mountain, Rock n Roller Coaster etc.