Period Diary Says I'm Due The 3rd And Ovia Says Im Due The 7th I Wonder Why Is That?

ovia automatically adjusts the length of your cycle based on your entries, and period diary you have to manually adjust it in your settings.

So You Would Say Go By Ovia? @mandanelly

I personally prefer it, the more data you enter every day, the more accurate it appears to be.

Ok I Got It @mandanelly

I use ovia and every month I start my period the day it says I'm going to.

Are Your Cycles Irregular @ashbrooke199