Mixed up my OPK's. Ugh!!

Nira • Wifey.Mommy.Happy
I came back for the TWW lol. 
I forgot to move yesterday's OPK and this morning I was in a hurry so I set the test down right next to yesterday's... Now I don't know which one is which. 
I wasn't sure if yesterday's was + so I was going to compare them... And now I have no clue lol. 
I'll probably just say I O'd today and make sure we bd again tonight lol