To my knowledge, you can't choose a c-section or if you can, there are very few places that allow it and even then I think you have to sign all types of consent forms etc. As for me, I am planning an NUCB vaginal water birth and so far
everything still looks great (no complications, etc. so it doesn't appear that I would have to have a c-section. I will be 39 weeks on Wednesday). Because our bodies are made to give birth, I don't think there are any cons to a vaginal delivery unless you
consider the discomfort you may experience. But no real medical cons or anything like that.
As for a birth plan, I do have one as well as one for baby care though I am giving birth at a birth center and they are already pretty much onboard with what I would like to happen barring any emergencies or unexpected complications of course.
In the rare chance I would be transferred to the hospital, the staff there will know what we are trying to accomplish as well (though I would still be a patient of the birth center and my midwife would accompany me, this will help ensure that
everyone is on the same page). I think most everyone knows that birth can be unpredictable and that a birth plan is not set in stone, rather a list of preferences providing things are moving along uneventfully and there's no need for deviation, etc. Due to
that, if you feel comfortable preparing one, I think it is a good thing to do. Mine even has a statement that we are aware things could not go according to plan and we realize that and are open to discussion about alternatives, etc. When you are
tired, sore, etc. you may not be in the frame of mind to reiterate or ensure certain things that are often routinely done don't happen. This way you don't have to worry about trying to remember things. I'd be more than happy to send you mine if you'd
like to see one. HTH and I hope this post made sense! : )