Most fertile day changes?

Question

So yesterday my "optimal day to conceive" according to glow was yesterday, at 33%. Now it's saying today is the day to conceive at 33%. What's going on with that?!

Answer

Mine moves when I enter in 'negative lh' for the OPK. It has moved twice in the last couple of days for me. I was at my peak, 28%, but when I had a negative OPK, it moved my peak for tomorrow. 
​I've noticed that my peak is lower than other's....may I ask your ages? I'm 34, and I'm wondering if that may be the reason. 
​Good luck to all of you ladies! ✨✨✨✨✨✨✨✨✨✨✨✨✨

Answer

Do you log daily? That could be the reason.   When I enter I tested with opk and it was negative changed my fertile day

Answer

I was literally just going to ask the same thing. My fertile week of moved up out of no where. So im at 33% today apparently? Weird. Maybe we input information that made it change?

Most fertile day changes?

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