BBT chart

Kimberley

Why has my temp go up again? I’m sure your bbt is suppsoed to go down I’ve known mine go down the day before or even day of AF but it hasn’t the day before it went up 14DPO and now 15DPO it’s gone up again and I started AF today she showed her face what does it mean?

I just don’t understand why it’s gone up and not down