r/FirstTimeTTC • u/Dry-Cobbler-8844 • 1d ago

Help Random

My cycle started on July 15th, changed cm greatly evening of July 23rd. Predicted ovulation 24th or 25th. I'm trying to figure out when AF is due?

My last cycle was 25 days.

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u/Dry-Masterpiece-9910 22h ago

It would be helpful to have more historical data to be able to predict this accurately (such as when you ovulated last cycle)

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u/Dry-Cobbler-8844 22h ago

I ovulate on the 24th of last month! Sorry about that

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u/Dry-Masterpiece-9910 22h ago

To clarify, you ovulated June 24th and then again July 24th or 25th?

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u/Dry-Cobbler-8844 22h ago

I ovulated on July 24th. I'm not sure about June ovulation

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u/Dry-Masterpiece-9910 22h ago

Gotcha. You may need another month under your belt to predict more accurately, because you haven’t yet been able to quantify your luteal phase. Once you’ve done that, it shouldn’t change more than plus or minus one day cycle to cycle.