Hi! Wow- you are in the home stretch! I'll try to answer some of your questions. I think my labors were very typical- no big surprises, no big rushes, typical lengths, etc.
I would say for your first labor experience, you will know "today is the day" at least 10-12 hours before the baby is born. And yes, if you ask me, you can certainly drive during the early portions of that.
The pains are different from BH or anything else you have been feeling while pregnant, which is why you'll know things are different, and this is labor. The pain is not "bad pain", per se, but more an overall real uterine tightening (thus contraction) around your entire front and lower back. They will be very sporadic and not very painful for several hours. This is when, in my opinion, you could drive.
After (on avg) about 6-8 hours of this non-invasive, interesting, exciting type of pain, the contractions should get stronger and more frequent, and they will require more of your attention. This is a good time to start timing them and writing it down. At this stage, during each tightening you will need to stop what you are doing, maybe close your eyes and breathe slowly until it passes. So I'd say you can't drive at that point! That's when I'd call the Dr and get a hospital arrival time goal (she'll tell you when you should come in based on how frequent and regular the contractions are).
I'd say by the time you're heading to the hospital, you will not be able to talk during the surges because they will require all your concentration (in a good way).
And later on, labor gets faster and more intense, but the pain is not so much classic pain as a major muscular contraction that is helping you to meet the all important goal of delivering your beautiful baby!
As I've said before, I think mental preparation is the SINGLE most important part of getting ready for the big day. If you haven't already done so, I highly recommend reading a book like Hypnobirthing or Birthing from within. They go a long way in preparing your mind for what's ahead, and for informing you in detail of the stages of labor and what to expect!
Please know I'm not a health professional, just a woman who has given birth twice and had two WONDERFUL experiences. It is truly a blessed event.
Good luck and I hope this helps!
Lisa
mom of Alyssa 7/15/03
and Cole 6/5/05