BBT chart help/advice

I'm 12dpo and had a sharp pain a few times in my fight ovary when I cleared my throat then it felt quite warm and tingly (it's the only way I can describe this feeling- hope it makes sence). I've had negative test for the past few days and no real symptoms just back ache and airy headed but nothing else really...oh and super cold hands and feel for the past 2/3 days. used preseed and pre pregnancy vitamins and BD 2 days before O, 1 day and on the day of O. my chart is below - any ladies had similar charts? any other advice/info would be super appreciated. xx

*update# had light pink/white CM 12dpo in the evening when I checked my cervix but not enough to show on a tissue - I only noticed it because I wiped my finger on a tissue after.