Ovulation date?

Question

Glow and ff are goving me different reading. Glow says i ovulated on CD13 and ff says CD 15. Im not sure what to go by! Ive been taking at different times but always when i first wake up. Usually about an hour variation

Answer

Based on chart CD15. 30min +/- from scheduled time still gives an accurate read, an hour is too long and will do the opposite.

Answer

Thanks yall! I typically ovulate on day 14 just trying to see when to start testing! A 2 day difference may as well be forever in the tww 😂😂

Answer

I agree with FF it’s CD 15 by temps and still reasonable timely after opk

Answer

Glow tends to only use OPKs when determining your O date. FF goes based on BBT. An hour variation isn’t terrible but this is a tough one. 
We usually don’t have a thermal shift in the BBT until we’ve developed enough progesterone post-ovulation. I could be that you O’d around the 13-14 but the shift didn’t happen until C16 because the progesterone had to build up?

Answer

From your temps I would say ovulation was day 15 too.

Ovulation date?

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