Well I'm 13dpo with AF due tomorrow!
With your temp, if you did it on the same day, your body temperature changes throughout the day. What you're supposed to do is pick a time that you can temp, same time every day after. This way it guarantees your results are correct.
Also, it is recommended to take it after at least 3 hours of uninterrupted sleep, and to take it right when you wake up before rolling over or anything. I practically sleep in my thermometer lol!
If you would like, you could click on my chart and take the link to fertilityfriend.com. they tell you everything you need to know!