Everything can change in an instant. My first two were a little early and started out of nowhere and this one was post dates and while I had stronger BH and mild period like cramps for weeks, it kicked off without warning too - my cervix was very high til the last minute. You just never know. There are some great articles on the main site about early labour tips, natural induction do's and dont's etc. It will be any day/minute now - you've come this far, hang in there!!!