you never know it could be!
i know labour started completely opposite to DD with my DS. (dd was posterior pains and DS front).

And he was 3 weeks early and born at home cause the hospital said the same thing to me, i went in and they said to go home as i would be 24 hrs (even though #1 was a 2.5hr labour!!!!) as my waters were in tact and irregular contractions and 1cm.

By the time they were regular and my water broke (i had no show with DS) DS was born 1/2 later on the bedroom floor!

so keep a close watch as every baby chooses he timing differently!!