My opks look the same

Olivia • Sat, Aug 15

My opks have looked literally the same for the past 3 days is this normal?? I either ovulated on the 9th or I ovulated the 12th/13th (I had bought opk because glow said I would ovulate the 12th. But then changed to the 9th and the changed to the 13th) god help me. Lol