Hi, if your due date was given to you from a doctor who did an ultrasound in your seventh week, I would agree with you that you ovulated around November 18.
If your due date were figured out (for example) by someone counting forward from your last period, or if you didn't have an ultrasound until week 17 (for example), I would not say you ovulated for sure around November 18.
Just trying to figure out how accurate the assessment of when you ovulated was. Can't answer your question without knowing that. Did you perhaps have an early ultrasound and were told a due date from just the measurements and developmental markers of the baby?
Hi, how do you know you ovulated on November 18?