Cycle day 15 or 16?

Sk

I am in cd 17 today on the 28th. (Missing temps because I use ovusense and vaginal bbt and was told not to use while bleeding/moderately bleeding. I got a positive opk on cd 15.

I know I ovulated by yesterday cd 16 at 5:56pm confirmed by ultrasound. I was wondering your opinions on it if was the same day as my peak since the temp rose a little already the day after!