Opks don’t work well for me so trying to use bbt and cm to figure out O.

Looking at my bbt I think I ovulated on CD 10 but my CM makes it look like maybe CD 12. Thoughts on my chart please?

Sorry for adding a second char, but I just remembered that on CD 11 I had to get up for work one hour earlier than usual. I went online and used one of those bbt temperature adjusters and have re-entered the adjusted temp for that date. The chart below shows that temp. Does that make a difference between CD 10 or CD 12???