Whatcha think ?

So last Friday I had what I thought was a positive test, on a blue dye test (I know). It was super early to be testing anyways what glow thinks is 7dpo. So I work at the hospital and my dr said go for a blood test on break. This came back negative. I took a urine test yesterday 10dpo and that was also negative. AF is supposed to arrive on Thursday (if glow is correct this month) no signs of her coming. I had cramping yesterday and then nothing. Do you think my testing (including blood) was too early and there is still a chance I could get a BFP or I'm out for this month.