I had positive OPKs even AFTER I O'd! Crazy PCOS hormones. It is quite possible. Ladies with PCOS have higher levels of LH in their system, rendering OPKs pretty much useless, although this month I got a +ve OPK around O time and negs before then (but I think that's cos my cycles are starting to even out).

Good luck xoxox


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- Sent from my iPhone using Tapatalk so please forgive my spelling mistakes!!