2NEG HPTs 16 days late!?

Hi so far im 16 days late and i have taken 2 HPTs both negative but i have all the pregnancy symptoms (nausea, headaches, moodiness, cramps,back pain,fatigue ,gassines -burping alot-, constent feeling of being "wet" white discharge and just watery like substance ) I am very confused anyone have any imput or experienced the same ?