Help! 18 dpo

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Hep! 18 dpo. Hcg at 15 more than doubled from 155 to 494. I took a pregnancy test and I got this picture. Before my faint lines were on the left I thought that’s the test line? now my line is SO dark on the left and faint on the right?????????? When I’m taking GPS it’s automatically showing up to super dark lines. There’s something wrong on my paranoid help! Picture on left is about 11 dpo 15 is two dark lines then 18 is bottom!