I'm typically a 28 day cycle kind of girl. This cycle flow determined I'd have a 31 day cycle. How does it predict 31 days if I'm typically 28 days? A 31 day cycle isn't impossible for me... but it is very rare.

We have been TTC for 17 months now and the last two months have been tracking free except when we have sex and my periods. I just happened to forget which cd I was on and looked at glow. Boom. Just like that I was on cd30 and I was technically two days late by a 28 day cycle standard.

Thanks!