Someone please help me with my opk situation:)

So the 27th of this month i got my very first positive opk first thing in the moring and baby danced around 5pm that day. Then the next morning I took another opk and it was negative because my surge was over. Fast forward to today which puts me at 3dpo and this is my opk from this morning. Idk about you but it looks positive if not it's pretty close compared to my second opk that I took the next day after surge day. I also have this cm when I wipe. What do you think can cause this? Please need someone's input. First pic is my positive test on the 27th. The second pic is test from after surge day and third pic is from this morning. Last pic is my discharge. What can cause a positive or almost positive test again after I already had my positive 3 days ago?