I was the opposite, i just KNEW I was going to go over, which I did, and when labour started I KNEW it was going to be long right from the start. I was getting constant contractions no more than 10 mins apart but still didn't tell anyone for over 12 hours. In the end it was a 32 hour labour, during which time i went out for coffee with contractions 5-6 mins apart cause I knew I was in no rush!