What's a cover line?

Question

A cover line showed up on my bbt chart yesterday what's that mean ?

Answer

Thanks ?

Answer

Yah that's what it is and it only how's up if you've taken your temps for 10 days in a row.

Answer

I'm new to bbt but I think it just helps you see temps below are pre-ovulation and temps above are post.

Answer

Thats the line that if your temps go over it, it means they rose enough to confirm ovulation. There's some type I mathmatical equation to actually come up with number, but I'm not sure. I guess it really doesn't matter sense glow adds it for us!

What's a cover line?

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