Well, I'll be honest. I vomited during most of my 21+ hour labor. Not really any nausea that I recall -- just vomit/contraction/vomit/contraction.
BUT apparently that's how my body reacts to extreme pain, and it was my body's way of dealing with the contraction pain. And unfortunately my husband (bless his dear heart) was unable to help get me back on track and refocused in doing breathing and other things we'd practiced ahead of time. After over 12 hours of this, I went into the birth center and after a few hours there opted for an epidural. Immediately I stopped vomiting. I could still feel the contractions, but the break in the pain was so immediate that I stopped vomiting.
The epidural started wearing off and I handled the contractions and still, no more vomiting -- I had needed something to break the cycle, if that makes sense, and it did. So I technically had a medicated labor, but an unmedicated birth.
This time we're hiring a doula and I'm hopefully getting the Hypnobabies set. I'm hoping that we can find natural ways to break that cycle and avoid the constant vomiting, should it occur again.
But honestly, the nausea and vomiting that most women encounter is temporary
, it's short-lived, and not ongoing. To me, that would be totally bearable, especially since I know what it's like to have it be ongoing for hours on end. But even for those like me, who have it the whole labor, it's no guarantee it'll happen every time. So you may not be nauseated or vomit at all. But even if you do, it will either be temporary in which case you can handle it, and as long as you have someone or something to help get your focus back on track, you can break the cycle, I think, should it be longer-lasting.
We just weren't fully prepared, despite having taken Lamaze classes, read books, and so on. I was in no position to be proactive with myself (I honestly couldn't remember anything I'd studied) and my poor husband was beside himself and not much help at all either, I'm afraid. So we're really hoping to rely on a doula who can help keep me focused. If you're really worried about it, that's something you might consider as well, unless your partner is really good in an intense/stressful situation. Mine unfortunately, isn't really.