How do I get back to my BBT chart?

So Glow predicted AF to start today, but my calculations say Sunday. Even when Glow asked "did you start your period today?" & I checked No, it still started a new cycle/bbt chart. I don't want a new one, I want to keep charting on the previous one until AF comes (fingers crossed she doesn't show up one Sunday). How do I cancel this new chart & continue on the previous one?

Side note: what a wicked thing it is to make AF symptoms & pregnancy symptoms the SAME! I will talk to God about this when I get to heaven!