Okay here is your-friend-the-nurse's opinion, fwiw:
If you travel after 30 weeks, be ready to deliver at any random place. Bring a copy of your prenatal record with you, it's a standard form used everywhere in the US, easy for any OB or midwife to pick up and run with; that's what it's for. This is a common "unexpected" situation.
Think about the obvious things, like keeping well hydrated and then passing all that urine in some tiny amount every time you turn around. Are you the type of person who gets grumpy about repeated irritants when you are feeling hormonal already? Do you have good peripheral memory aides or a steady partner who will remind you of all the things you can't remember anymore? Don't set yourself up to be miserable.
And brace yourself here because I am going to reveal one of the best-kept secrets in our culture: pregnancy can still be deadly for the mother.
In my job I see a lot of that, and it makes me really sad. Our US maternal mortality rates have not improved any for over 30 years. About half the time, cause of death is something that can be understood, and might have allowed for a rescue, at some point, with different care. But in about half of all cases, we have no clue. No fucking clue. We can describe what
went wrong but have really no idea why
. So, if you have done everything right you can still die, and being in some big city hospital might not help you one bit. Just taking that baby to term is already so dangerous that doing it in BRC hardly adds any risk.
So, I would say go for it. Find a nurse or somebody in your camp and be really really nice to that person.
Find the med stations, and wander in to get your blood pressure checked on a regular basis. Find the Ranger stations, and make friends with them too. Be nice to yourself. Pay attention to what your body tells you. Most moms do just fine.