BBT Experts, Help please⁉️

🎀 𝒜𝓃𝓃𝒶 🎀 🇬🇧

Can anyone give any insight into why I’d appear to be having a have a temp shift LOWER when I should be about to ovulate?

I use OvuSense (internal thermometer which takes a temp every few seconds overnight so I know these temps are correct)

Not seen this pattern in my chart ever before usually I get the normal higher shift - does this mean I’m not going to ovulate this month?!?x