how do I convince Glow that I ovulated early?

Sara • TTC #1 for 1.5 years with MFI.
I usually ovulate CD 20, but this month I ovulated CD13. I can usually confirm O by my OV pains and the sore boobs that start a day or two after. I want Glow to reconfigure my cycle, but I'm now sure how to tell Glow I ovulated early.