after O, pos OPK neg HPT?

[orangedaisy]

Ok ladies I really need some input. I'm supposedly 6 dpo today. Yesterday I felt like POAS so I did a wondfo hpt and bfn. OPK was very positive tho, so I thought maybe Fertility Friend was wrong and I actually hadn't Oed yet. But today with FMU I did an experiment and peed on an OPK and HPT again. Here's what I got... I thought OPKs weren't supposed to be positive with FMU?
https://i1129.photobucket.com/albums/m515/iheartcruiae/2011-11-23032341.jpg