DD1 was a looooooooooong induction. Then DD2 was extremely fast I went from 3cms to my baby girl on my chest in 15 minutes. My third girl was born after an active labour of almost three hours. I was told the entire way through that your third birth is your wildcard - could be faster (God help those of us with quick #2s!!) or it could be slower, as mine was. I prepared as much as I could for a car birth (we live an hour from the hospital), but didn't even come close. I was given the option to induce, but that was more because my OB knew I was becoming a bit stressed by the prospect of birthing by the side of the road than him being concerned ITMS. In the end, thanks to wise words from the lovely Liviam, I went with waiting for my girl to choose her own time.