Positive ovulation test near expected AF?

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So we've been trying to get pregnant forever....I asked my fiance to stop at the dollar tree on his way home for some pregnancy tests. My AF is due to arrive on the 9th, though it varies. He accidently grabbed ovulation tests...and I thought hell you bought um so might as well use one because I never used one...I wasn't expecting to get a positive since I am so close to AF...and it's weird because the test line is super positive dark....I heard this could indicate pregnancy? I know I know just get a pregnancy test...but since I have to wait....I'm curious about anybody else's experiences?