How long did it take?

❤️Amber • Mommy of a 12 year old, 3 angel babies and TTC
I am now 17dpo got my first super duper faint line at 15 DPO and the line is not getting any darker I am becoming so discouraged and thinking maybe it isn't my BFP. AF is 4 days late now and I have no signs of her coming. How long or what is the DPO you finally got your dark line BFP?