Why would an ovulation test be positive in the morning and negative that evening?

Er

Er

Had a positive test this morning and tested negative this evening. Wondering if that's normal and why it could happen. I guess I assumed the surge would be detected longer. Does everything past the initial positive essentially not matter as levels can fluctuate?

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COMMENT (2)

ki

Posted at
Surges can last hours or days

jo

Posted at
probably means your surge happened in the morning and the second test didn’t catch it.