Ewcm 4 days after peak OPK

I’m so confused. I’m using the clear blue advanced with the blank circles and smileys. I got 3 low days, skipped a day, and then that next day got a peak smiley. So I assumed I ovulated the next day. I didn’t have any ewcm that day but now, 4 days later (so 3 days after when I thought I would ovulate) I have what I am guessing is ovulation pain and ewcm. So now I’m not sure what to think about when I ovulated. Has this happened to anyone else?