OPK BATCH

Lumu

so I’m supposed to ovulate in 10 days (took clomid this cycle) I know this is negative but WHY DOES MY opk look so DULL ? Is that normal .. has anyone had easy at home opk strips that look like that? I barely see a second line 😳 did I just get a bad batch ? Usually my previous batch have more color … this is the second strip like this .