When does the cover line appear???

Malinda • Married to my best friend ❤️ 👼🏽 👩🏽👧🏼👶🏽👼🏽🤰🏼🌈

I’m new to atTC and BBT feel like I actually have a pretty good BBT chart and I keep looking to see if Glow will draw even the dotted cover line, but nothing. How long after ovulation does the app wait?