Easy @ home super light 14dpo - is this a chemical?

UPDATE: this was a chemical 💔💔💔

Please help me figure out if I am right to worry. This is what’s happened the last few days:

9dpo: suuuper faint positive FRER

10 dpo: darker FRER, positive digital

11 dpo: same darkness positive FRER, light easy @ home strip

14 dpo (today): suuuuper faint easy @ home, not even visible in a picture. Took with FMU. Didn’t take an FRER or digital.

Is there any reason a strip would be almost negative at 14dpo if I’m NOT about to have a chemical? No cramping or bleeding.

Should I take another digital or FRER tomorrow? I’m so nervous 😞

one successful pregnancy/birth, no miscarriages, so my doctor didn’t order a blood test to check levels, just the 7 week ultrasound, but no clue how to wait 3 weeks...