First Time Moms - Was your labor sudden or spread out?

Meaning did your labor come on suddenly with no warnings or signs that it was going to happen that day or even soon? Were you feeling absolutely fine besides pregnant as hell and thinking this baby isnt coming for awhile still, maybe even after DD or were you constantly having BH/contractions for days, feeling weird/nauseous/ feeling as if labor could be near? Wondering as a FTM from other first baby perspectives... I’m 38 weeks. 12 days left until due date. No signs of labor and not dilated either!! :(