OPK question, again

C

30 day cycle

4 days AF (29th - 2nd)

First OPK on CD 6 (4th of April)

How come they showed up positive from the start so early into my cycle, I started testing so early because I didn't want to miss anything, now it's only confusing me.

My fertile window only started today (predicted by Glow).

7th of May was the darkest, now they get fainter again?

Anyone had something simular?

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