I took another opk.
Took it at around 6:20.
Not sure what to think.
Read on the POAS website that depending on the brand, a thin dark line could mean positive, but on other brands, it doesn't.
Not sure where wondfos fall so yeah.
Here's the test
The thin line is def as dark, and the test dried nice and dark as well, but... that's all it is a thin line.