I never had any Braxton Hicks, or a show either... so I would say my Pre-labour symptoms started when I woke up at 5am in the morning with little niggly pains. I thought I needed to go to the toilet, but there was nothing to come out (sorry for TMI!) But I did notice a lot of clear discharge, which I now think could have been my hindwaters or something...
I then had these tiny niggly pains for the next few hours in bed, and the next time I stood up, my waters broke and gushed out everywhere!

As I wasn't having real contractions, yet my waters had truly broken, I was induced via the syntocin drip that night to bring on some real contractions, and Aidyn was born at 3am the next morning.