First time using BBT, is this normal?

S

This is my 2nd month ttc and 1st month tracking BBT. I feel like my temps are just all over the place compared to other charts I see here. I temp within 90 min each day (5am - 6:30am depending on when I’m up for the gym/work).

I also used the clear blue advance ovulation test which gave me a peak on CD12. Any thoughts on this?