Oh my gosh i am the exact same as you and our dates are almost spot on (give a day or two). Today i had EWCM again like i was ovulating again so i am also unsure as to what is going on?? I have also done HPT's and they have all been negative too. It really sux to know that these are the symptoms of AF due. I have also experienced pains for the last week or so but obviously they are just AF cramps .
I would really know how u get on if u could keep me updated that would be awesome. Good luck and fingers crossed for the both of us