wouldnt worry too much mate.when she starts panting amnd pushing they will come,if she aint pushing shes not redy...not sure about the clear stuff.just a bit of fluid.could be wrong but im sure all will be well.best of luck with your litter.
edited to say that every litter iv ever had has been 9 weeks to the day,never early but i know someone who had 4 days early but more often that not they will go the whole 9 weeks.all the best