All 3 of mine so far have been completely different!

DD1 - show, then about 6 hours later waters broke (slow leak). Contractions started 2 hours later & gradually built up til she was born 18.5 hours after waters breaking.
DD2 - contractions on & off for 24 hours, very painful at 30 minutes apart, then bang to 5 minutes apart, waters were broken as she crowned, born 30 hours after 1st contraction.
DS - contractions for about an hour, waters broke, contractions were irregular right from start, to finish...5 hours after first contraction!

Number 4 will be interesting!