fertile days changed overnight?

Question

I've been keeping track of temp cm and fertile days per my calendar and after inputting my temp this morning it changed my whole fertile window by three days.  Yesterday was originally my peak day and now it shows yesterday is the last day of fertile window.  What would cause this change?

Answer

I generally find bbt to not work for me. Even with the proper thermometer, at the exact same time, every day, it's off. I have read studies which suggest it isn't accurate for all women. I generally employ am "every other day" policy from about cd6 to cd30. If I notice ewcm I will double up. This worked the first time i got pregnant, so I am going it will work again. If you really want to pinpoint ovulation I would suggest OPKs, a fertility monitor, or a ferning microscope. Don't worry about what glow says, just keep tracking and having sex. Good luck.

Answer

It must have been some of the data you entered that made it adjust.  It's frustrating, but glow is only following algorithms etc.  and the more data you out in the more accurate it will be.

Answer

Thanks so much for your response!  It's very frustrating because I thought I still had one more day of opportunity in this cycle.  Now it shows I ovulate two days after AF ends and I know that's not correct

fertile days changed overnight?

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