Question!?

Analise
Okay, so I took and OPK every day during my fertile window. The first couple of days there was only one line. Then there were several days where there was a faint second line, but I never got two solid lines and now my fertile window is over. I have continued the OPK's because I have kind of irregular periods in case glow was off and still nothing. Is it possible that the faint lines were my lh surge? Why was there only one line for several days? Did I just not ovulate? Help me please!?🤔🙄