Soooooooo.... Help??

Faith

Okay so i accidentally bought the blue dye test not remembering hearing they can give false positives. Is that still accurate with blue dye tests and should i go get a red dye test? Will have to wait til friday as we live 45 min away from walmart and the closer store prices are ridiculous. Or is this actually a positive test?!?! Ugh help lol currently running on cycle day 40 and normally have 26-28 days in a cycle.