A.G.
make sure you have a pillow to put behind your lower back. And where comfortable, loose shoes. I flew when i was 8 months pregnant and because of the altitude change my feet started to swell. So i took my shoes off and once we landed my feet were so big I couldn't get my shoes back on. My sister was wearing flip flops so we traded shoes but if she wasn't there i would of had to go bear foot. It was really bad. but hopefully that won't happen to you.