Thanks for the query.
I understand your concern.
Possibly you might have conceived after your last menstrual period during the period of ovulation.
Usually gestational age is calculated from last menstrual period.
According to your last menstrual period November 10th, your gestational age should be 6 weeks 4 days for today i.e. December 25th, which is corresponding to your history.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.