IUD pregnancy ??

I’m on the IUD, I’ve been on it for about 1.5 years. My breasts were hurting for days so I decided to take a test even though I expected it to be negative. But instead I got this faint line… is this an indent line? It can’t be Evap because I watched it appear as soon as the urine crossed over and couldn’t believe it…Is this false? It looks very light pink in person. Could it just be a dye run?