I've had three natural drug free labours. With my first it was a good slow but steady build up with second stage being 1.5 hours and all up labour of 8 hrs, my second wAs very quick no time to think of pain relief 5 mins of second stage all up 2.5 - 3 hrs, my third was hardest in terms of a really full on contractions for the whole 6.5 - 7 hrs the second stage was pretty short maybe 5 or 10 mins but she emerged posterior with her hand up near her face.