Hi there,
I agree with previous poster, we were visiting Disney from the UK last week with our 1 yr old baby (I am also 5 1/2 months pregnant).
We asked on the Wednesday about reservations on Friday and were told that we couldn't reserve. When we turned up at 6.30pm, we had to wait until 8.15pm to be seated. We then ordered our meal quickly as baby was getting VERY tired and whinging. 1hr 25mins later we were STILL waiting for our food and baby was SCREAMING!!!!! and I was feeling very faint!! We decided to leave!! Just as we were leaving the food arrived and the waiter couldn't understand why we were annoyed!!!!
We wished we had never bothered in the first place!!! (we were hoping baby would sleep, but there is just TOO many distractions there!!) We did however try the RC at the Animal Kingdom at 12.30pm Saturday which was MUCH better, we only had to wait for 20 minutes for a table and baby was much happier and able to enjoy the surroundings. That would be my suggestion.
Also, they 'try' and get you to leave strollers outside, saying that you can only take them in if baby is asleep!! We insisted the first evening we tried and they didn't refuse in the end.
Good luck, and have a great time.