BBT readings

Ovulated on CD 16.

Just wondering how to properly read my bbt, I take it when I first wake up, it seems like it’s all over the place? I’m currently 6 DPO, i don’t want to symptom spot but I have had sore/tender breasts some days light cramping. I have PCOS and this is my first cycle of 50mg Clomid!

My bbt

CD 12 - 97.18

CD 13 -97.33

CD 14- 97.33

CD15-97.58

CD-16 skipped but ovulated!

CD 17-18 skipped

CD 19 - 97.90

CD 20 - 97.90

CD 21 - 97.60

CD22- 97.73