I didn't have a waters breaking moment (midwife never figured out when they went!) and didn't have a show. Never had Braxton Hicks either. Had felt head-engaging discomfort though. Woke up very early at 39+6 with mild contractions, they got stronger and more frequent as the day went on, tried to eat toast but threw it up, left for hospital when about 4-5 mins apart, was 8cm on arrival, had DS about 4 hours later.
Oh, also back-to-back, apparently, even though he had been the right way around the day before. Gas and air did me fine.
The head crowning really really stings, but you know you're nearly done at that point