Does this test look invalid?!? HELP

I had a chemical last month and I tested until the tests showed completely negative. I’m only aprx 6dpo but my breasts were killing me all day today and I decided to test. I probably shouldn’t have with it being so early 🤦🏼‍♀️ and I just got this result. The line isn’t as thick or dark on the bottom as it is the top! Do you think it’s invalid?! I did find some other tests online that were positive that looked similar. Maybe ovulated earlier?!?

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