Chart help

Stacey • One boy, one girl, Two in Heaven and another on the way. Endo Warrior, Bicornuate Uterus

So I just have a few questions. Looking at my chart...I had a temp drop at cd 10 followed by multiple days of higher temps. According to my fertility friend I ovulated at cd 14, which would make sense as I had a positive look at cd 12, but what about my temp shift at cd 10?

My husband was on night shift starting cd 14 so we couldn't bd anymore past then...I feel like I maybe missed it this month....any thoughts?