So when I first started this app, I put my regular cycle down as 35 days, even though I have no idea what my cycle days are. I tried to change it in glow based on august period and septembers, to see when I would ovulate, but glow says it won't change my ovulation days based on the new prediction because of what I put when I first got on glow.

So how does glow know when I'm ovulating? I'm not going just based off glow as to when I ovulate. Just hoping for some insight!

Thanks in advance!