BBT help please!

Beth
Hi lovely Glow buddy's
​I could do with some advice. I'm currently on the TTW but have no idea how I track if I ov or not? I have had CM signs and what I could only describe as fizzing feeling on both my ovaries? Sounds daft I know. Should your temp dip or rise when ov? 
Advice please! Currently at 13 months ttc xx