Primarily DQ is a huge arcade - think Gameworks if you have one of those near you, with a Disney touch. The simulator type rides are what makes it worth it and you wouldn't be able to do many of those:
Cyberspace mtn - definitely not (simulator that goes upside down, spins, etc to simulate a coaster)
Buzz Lightyear - definitely not (a bumper car ride where you also shoot nerf balls from your car at others)
Mighty Ducks Pinball - probably not (you stand on raised platforms and rock back and forth to move your ball on the screen). This doesn't have any jerky motions other than what you do yourself and I remember a handicapped one - maybe you could use that; I think you sat at that one.
Aladdin - probably. This one you sit on a horse type seat, wear a virtual reality type headset to move on your carpet. I don't remember any jerky motions, just as long as you were comfortable wearing the heavy headgear on your head.
Pirates of the Caribbean - probably. You again wear VR headgear and shoot or steer your ship through the seas. You don't actually move though so you could control your movement.
Jungle Cruise - probably not. You sit on inflatable rafts and paddle to move your boats (paddles have sensors). This is a somewhat rough ride so I'd say no.
Ride the Comix - maybe. Again a VR ride, but this time you use a sword type sensor to attack Comix. You'd be able to limit your movement yourself, but you wouldn't do very well in the game!
These are the main ones I recall. There are a lot of creativity areas (design your own CD, toy, learn to draw cartoons, etc.) that would be fun and you could definitely do. Also you could do arcade stuff. The question is how much you enjoy arcades. Personally when I was pregnant, I wouldn't have enjoyed it very much because it's SO LOUD and hot and crowded. But to be honest, I don't enjoy it so much when I'm not pregnant but have 3 boys who have loved it since they were in the 3-6 range and are now 9-12. If you go, be sure to get the cheesecake (one of the few redeeming qualities of DQ!)