Bbt is constant

Ashley • 36; #ivfsuccess 💙💓

What does this mean? I got this pop up after inputting my bbt this morning. I’m pretty sure af is coming. Bummed first cycle with clomid. Does it just mean I’ve had “constant” days over the coverline. The article didn’t elaborate if it was a +/- thing. And is staying over 98.20 Fahrenheit the number you don’t want to see less=af?