Hi Ladies, I'm looking for some opinions on this:
My brother is getting married next month in Jackson Wyoming. At that point, I will be 20 weeks pregnant with twins. The altitude there is at about 6,700 feet. My Dr wasn't thrilled about me going to the higher altitude, but he did not say not to go, he just said he wouldn't go any higher than that and I most likely wont be very comfortable. We were planning on driving through Yellowstone, which the altitude is a little higher there, but my Dr said as long as we were just driving through and not staying the night at those higher altitudes he was OK with it.
I have been out there before (not pregnant) and have had no issues with the altitude, but I am worried how it will effect me being pregnant. I'm worried about getting out there and being miserable and having a hard time breathing. If it were any other reason besides my brothers wedding, I most likely wouldn't be going, but I would feel horrible not being there, especially since my sister wont be there as she is due with her first baby the week before the wedding.
Has anyone traveled to higher altitudes while pregnant? Have you had any issues?

Re: Travel to high altitude
Try to get some elevation gain beforehand and take it super super slow. And stay hydrated... maybe a gallon of water a day. It's great that you're driving out there, and that you're going to be driving through higher elevations before staying in Jackson. In my experience, that will help a lot! Try to stay in Yellowstone for a few hours so that your body gets a little time to adjust, but definitely take it easy. Jackson may have an oxygen bar, where you can pay for 15, 30, 60 minutes of getting pure oxygen. Check with your doctor about whether or not that's okay to do while pregnant. If anything, that may give you peace of mind and help you relax--just getting a burst of nice, thick air.
(Part of the good thing about being pregnant and traveling to high elevations is that most of the things that trigger altitude sickness are already limited or avoided: caffeine, hot tubs, alcohol, etc.)
I think the most important thing is drinking a TON of water. Dehydration is the main cause of altitude sickness, and ain't no pregnant lady got time for that! Also making sure that you are snacking and resting is key. If you ever feel lightheaded or tired, just relax, put your feet up, and sip on water.
Last tidbit, I found that I got really uncomfortably gassy during the drive up to Steamboat a few weeks ago. I will be taking something for that before we leave for Vail this weekend, and I recommend doing the same if you think it might bother you.
Hope that helps! Have fun at your brother's wedding!
From what I've read, there's not much you can do; the only recommendation is to drink more water. But just remember that altitude sickness can affect everyone differently, even at different times.
I live in Colorado at about 4500 ft and travelled a few weekends ago to Copper at about 9700ft and had no problems. I asked my doctor if I should be concerned going to higher elevations and she said not at all. We even hiked up to 10,500 ft. My only complaint was that I was a little more breathless but that could just be because I haven't worked out at all in the first tri. Like pp said, drink a lot of water. I am curious what elevation you live at?
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I ignored a lot of the high altitude information since I also live in Colorado. So I don't think we can go up high enough to make it an issue comparative to normal... I've been fine even when traveling to the mountains. Only slightly more breathless, but I was hiking and that does it anyway
Although I will note that I don't quite agree with your dr.'s theory of not staying for long. As someone who hikes a lot I will say that it is far better for you to slowly allow your body to get used to it. That's why the general advice to fly in a few days before a massive hike or climb is suggested. Spending a few days in Denver will be a way for you to sort of accomplish that... Denver is quite a bit of a difference than MI. Just take it easy in Denver and drinks lots of water. Your body will tell you if you need otherwise.