Quoting MonkCakes:" This is prob a really stupid question but I'm not good at this ovulation stuff Do you ovulate the same time every month? Or does it change every month?"
Mine has been different.
I haven't been using OPK's.
But my first cycle I had signs on CD 10 and 11.
Then the cycle after that I had no signs at all (pretty sure my body just skipped it that month because AF was 18 days late).
The cycle after that I was at like CD 16.
And then this cycle I O'd on CD 14.
My cycle length varies between 25 and 28 days too.