opinion on test result

This is the third super dipper faint line I have gotten today with these cheap tests. But they are read at the 10 min mark instead of 5 mins. I'm a notorious spotter starting around 10 / 11 dpo but I haven't seen so much as a spot. I'm 13 dpo and tmw is the big day! All I seem to see and feel is Milky cm. Would you think these tests are invalid because of the timing?