Help me understand please

Briana

On the 25th i had high fertility, 26th peak BD'd 25&27. Then yesterday at roughly 8-10 DPO i accidentally took an LH instead of HCG test that was positive, confirmed again by CBAdvanced....Did I ovulate in september or am I ovulating now? CM was fertile then and now it's stick/not a lot.

Any ideas why i would've got another "positive" opk this late in my cycle?