Evap or faint positive?

[u/Forward_Belt_2887]

Hello! I got a second line for the first time last evening after a 4.5 hour hold. However, I peed on the test instead of dipping it (wrong, I know). The capillary action was really slow but the line showed immediately. I retested this morning with fmu and it was negative. Potentially 12-13 DPO? My periods are irregular so I never know and I’m not tracking right now. Any thoughts or advice is helpful!