False Positive Stress

I have had an IUD for four years now and have had zero issues with it. Alongside my IUD, my boyfriend and I use pull out method, unprotected. I skipped my period on July 11th, which is not uncommon from me. However, both my Oura ring and my clue app agree I probably ovulated between July 28th-30th. All of those days we were active and pulled out. I have been stressed for weeks on end about this, as i’ve had some weird symptoms, high heart rates (which could be stress), rising BBT, bloating etc. I still have not gotten my july period or my august period.

I took a test on August 4th, clear blue non digital early, and it was negative. It kept nagging me so I took two tests yesterday, (august 10) second pee of the day, clear blue digital (early detection) and non digital. Non digital came back negative and the digital came back positive. after panicking, I took two more tests that day after waiting a few hours, both digital and non digital came back negative. I took two more tests this morning(aug 11), first response non digital and clear blue digital, both came back negative. so 5 negatives and one positive.

from what i read online, false positives are very uncommon but i also read that they can be common, especially with clear blue. i’m getting conflicting information and am not actively trying to convince. im just incredibly stressed out and don’t know where to go from here. i truly believe im not pregnant but that one positive test is keeping my anxiety through the roof. has anyone experienced this?