PCOS low temps

Char
I have recently been diagnosed with PCOS. I am overweight and have a high BMI, I'm working on losing weight! I've been charting for this cycle and I'm pretty sure I didn't ovulate but I just always have really low temps! This morning I had gone down to 34.8c! Does anyone else go this low? Is it PCOS? I have read about low temps being due to thyroid function but I'm sure I had them tested not long ago. Just asking for any similar stories/advice? Have attached my chart. Xx