HELP faint positive or evap line??

hi ladies... so 2 days ago I took a pregnancy test (one step & first response) both had a seriously faint line... then yesterday the same thing but only took a one step and then today had 2 more faint lines... they don’t disappear either but I can’t really get a picture because the camera won’t pic them up. I’ve managed to get a picture from the one today though. What do you all think? Is it an evap line? 

Last month I had a chemical pregnancy and like a year and a half ago I had an ectopic so I really need some help. I’ve been trying to conceive for 3 years now.