bfn at 12 dpo... Am I out?

[Lisistrata]

Contains Sensitive pic
Hello,
I had on Friday what I though it was IB at 10 dpo, then today a BFN clear blue test on 12 dpo.
I feel very nauseus specially when I drink or eat, and sore boobs and white think cm. Period due on Tuesday or wedensday
Do you think I'm out?

I'm attaching the pic of the IB to see if someone got something similar or maybe it wasn't?

Did anyone had a BFN on 12dpo and then a positive result?

I didn't get a positive result until I was 10 days LATE, so probably 17-18 DPO?

With my son I only got bfp at 15 Dpo, it was still perfectly negative at 13 Dpo.