Pregnant or not?


So i am 6 dpo according to glow and and i am having cramps and backache like periods with watery discharge. And my legs are have stretching pain also. And my nipples become darker then usual. So i took this test and i dnt knw what it is because i see a vvvvvvvvfl but then i dnt see any line also, is my mind tricking or am I really pregnant?

I have pcos and trying to conceive from 1 year now