Half a positive line?

This is my first time ever using these David pregnancy tests off Amazon and I got what looks like it could be a positive but half the line is missing so I don't know if this was just a bad test, dye running, or what to think of this and would really appreciate feedback. I've been having a lot of cramping and plan to test again later today as well but have no idea where I'm at DPO wise or anything because I just had my IUD removed end of June with no actual period happening since so I'm in the dark on this cycle