Glow a d other apps dates don't match?

Katie • 27 years old. Me and my husband have a 4 year old and TTC #2!!
So I have 3 apps total. Glow, ovia, and just a normal period tracker. Glow has af starting tomorrow, ovia and other have it one the 1st. And they also have ovulation days off. Glow has my ovulation the 5th to the 11th other 2 have it 7th to the 13th. How do I rest glow to make it the same? I don't want to lose all my logging, but want accurate info.

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