Hi S. -
Allow me to have just the teeniest bit of fun & point out that the Thais have been having babies live there for quite along time, otherwise there wouldn't be a Thailand... but I do get your meaning, I really do, I just couldn't resist.
I think the most important thing to consider is where you'll be in Thailand -- are you to be in an area where you'll have access to clean running water? Easily obtained nourishing food for yourself if your to be breastfeeding? What kind of conditions will you be living in from day to day? You could look in advance for the American embassy and get hooked up with whatever you might need in case of whatever might come up. You should probably find the Thai embassy here and ask them for advice.
And also important to find out is what sort of vaccinations your baby might need in order to go there. I don't criticize anyone who chooses not to vaccinate living here, but going there, I do think it's another matter. So even though you've got a ways to go before the baby is born, you probably need to talk to some pediatricians soon.
This sounds like an amazing experience, one that you shouldn't miss unless you really need to stay home, or if more level heads than mine prevail upon you to keep the baby home and away from places like Thailand.
All the best, and congratulations on your upcoming little rascal.
Cheers,
Colleen
ps - excellent idea of Julia's to keep sinus passages clear, but do be careful of petroleum-based products. I read on a package of one or another of them a warning not to put near nostrils, as it's not to be breathed. Look for something camphorish w/o petroleum. No criticism, Julia -- HARDLY ANYONE seems to know this. I was completely surprised when I found out. Even doctors don't realize, but the warning is there on lots of products.