Clearblue digital opks

Kerri • 17 months ttc, 4 cycles fertility treatments just got my + hpt today!!!
I have been getting high fertility with the clearblue advances digital opks for the past 3 days. I just use a basic clearblue digital opk and it gave me a positive reading. Does this mean I am ovulating now? I thought I needed to get a peak reading on the advanced digital? I'm so confused