Evap line???

Cassie • Momma of Two Graci 5-7-15 Graeson 9-7-16! Angel Momma of Two Nov 2015 and Twin B Jan 19 2016! Single Momma! TTC baby 3 via Sperm Donor! :) ❤️💜
So i took a Hpt and this has happened three times like the line showed up but then Faded away to nothing making it neg is that an evap??