10-14 dpo positive then faint?!

mama

Okay so I tested 10dpo and it was VFL I tasted like 3 times then 11dpo the line was the same. I waited till 13dpo and did a blue dye it was immediately positive but then I went back later that day and it looked barely there.

So I tested tonight 14dpo and it looks like my opk line finally looks darker. Also started with nausea today.

Does this look normal for line color 14dpo?

I may have ovulated later & be earlier in dpo.