Hi. Sometimes your waters (and if it's only a constant leak or not a big gush, this can be your hindwaters) can break well before contractions start. I think though, that the hormones in the waters usually helps the cervix ripen and gets contractions on the way on its own - otherwise medical staff will usually advise induction within 48 hours to prevent infection from bugs getting in now that waters broken, and maybe antibiotics in your arm every 4 hours in labour - again to protect against this.

It did happen that way for me - my hindwaters broke, I KNEW it was not pee, that had never happenned and it didn't smell like pee, I rang the hospy couple of hours later and was told I had to come in - as I was getting in the car contractions started at a minute long and less than five minutes apart from that point forward. Bub was born about 4 hours after that. (PS - keep that pair of undies and don't have a shower if you're going in to be checked - the nurses couldn't find traces of my waters having broken by the time they swabbed but I think the facts spoke for themselves)

The other thing is if it's a big pile of CM maybe part of a show? How exciting sounding however!!