Which was my surge?

OK so I am completely confused about this cycle and could use advice. I had what I thought was a positive opk on last Friday CD 13 but didn't have much CM. Normally I get blazing positives but this was border line and only lasted 1 day. Then 4 days later I noticed EWCM which lasted for several days. I started using OPKs again thinking maybe the first one wasn't positive. Nothing came of it so yesterday (Saturday) I didn't really have time to test and figured no biggie since I hadn't noticed any CM in about a day. I thought maybe I had my positive opk and it just took a little longer to actually ovulate. Well today (Sunday) I noticed a ton of EWCM again and just took a opk and it's positive. My last opk that I thought was positive was 9 days ago. So now I don't know if this positive is just because AF is coming or if the last one really wasn't positive. I've included some pictures of my tests. I don't usually test after the positive and only did this time because I was questioning if it really was positive or not. What do you guys think? Note: I do not track bbt because I am a very light sleeper and have a fairly erratic sleep schedule making getting accurate results difficult if not impossible.

Here are my tests:

This is today's: