Very faint positive dollar tree test;negative digital???

Kita

Well, now I’m just confused. On Sunday, 2/3 i was 11 dpt. I tested and was sure it was negative. Today (14 days past trigger), i went and bought 2 tests from the dollar tree and took one. There was a very faint positive that showed up immediately. I couldn’t believe it so i went out and bought a Clear Blue digital that was “not pregnant”. Did the dollar tree test pick up remnants of the trigger? I’m so confused 😐