Sooo confused about opk

Here’s my opk results this month:

I took both clearblue digital and the cheap stick tests

CD9 - blank circle / negative stick

CD10 - blank circle / negative stick

CD11- SOLID SMILEY/ POSITIVE stick

CD13- blank circle / negative stick

CD13- flashing smiley /negative stick

I’m soo confused what is going on?!

So my guess is that it’s picking up the slight rise in estrogen that happens after ovulation but LH won’t rise again...