New to BBT tracking

This is my first month tracking bbt to try and confirm ovulation. My chart just looks weird. I feel like my temps are all over the place. The highest temp was taken later and not after consecutive hours of sleep because the one I took at my normal time was 100.04. I don’t know if I was just running a low grade fever or what, but I didn’t want to throw my chart off that much. But i feel like they are very inconsistent. I should be ovulation today CD14 or tomorrow. Any thoughts from those with bbt experience?