Please don't take my post with any authority, I have absolutely NO idea what I'm talking about, but I had a couple of points -

1 - If you have a weak stomach, wouldn't the whole birth be a problem, not just IV's?
2 - Babies pretty much come whenever they want, so I'm guessing you hafta work around their schedule, KWIM?

I really don't mean any offence, those are just my thoughts