It's getting there, but not really that close IMHO.
Here is my opk from Wednesday evening/CD12 (top)/Thursday morning/CD13 (bottom). Top test is almost positive and bottom is positive. I wish I had a pic of the Wednesday morning and/or Thursday evening because they look a lot like yours. Some people have a gradual buildup to a positive, I go from very negative to very positive without any buildup.
https://i39.tinypic.com/9ia90l.jpg
7DPO seems really early for ovulation, but I suppose not impossible. I had a ton of EWCM this cycle at CD5-8 and the ovulation tests didn't pick up a surge at all.
I hope the example was helpful. Good luck! This whole TTC thing is hard!