ME! ME! ME!! Been there...done that! In the same pregnancy, I went at about 15 weeks or so in April and then 6.5 months pregnant in July. It was HOT to say the least. But we had my parents with us (we had planned the trip as a THANK YOU for all the help they have given us over the years) so it was a bit easier. They were able to take DD when I got too hot to walk anymore or I had somebody to sit with when DH took DD somewhere.

There was LOTS of sitting on that trip...people watching is fun...and lots of water! The other good thing is Mickey bars - who can say no to a hot, pregnant mommy??

Another thing that helped A LOT was something cold for my neck. We took some washclothes from home and one of those neck things that you can make cold with water. It helped so much to stop every little while to make it cold in a water fountain. Even kept one in cold in our cooler while I wore the other one!

If you have other little ones, bring bottled water with you in the stroller - as you know it adds up at the park!