I went when I was a few weeks pregnant and then again at 7 months. The earlier one was not a big deal, other then I had to pee much more often and got a bit tired. The 7 month one was much more brutal. I carried more internally and I struggled to breath, my feet and legs hurt, and I just was much more exhausted. Take plenty of breaks, drink plenty of water, go at a slower pace, and don't worry about missing things. This was 20 years ago with no covid though. I would not go with the virus as rampant as it is. I just don't feel like it is worth it. Disney will still be there in a few years.