Glow BBT graph

Misty • DH and I have been married for 8 years. TTC #1
Love the new updates!! just wondering if a cover line is going to be added in the near future. i know so many women just starting out are unsure of their O day using the current graph. I've been at this awhile and think adding a cover line would be a great benefit to women on Glow and relieve a lot of unsureness