Thanks for the query.
I understand your concern.
If you plan unprotected intercourse around the time of ovulation there is possibility of pregnancy.
You can calculate ovulatory period according to your menstrual cycle in case of regular periods.
Usually in case of regular 28 to 30 days menstrual cycles ovulation occurs on around 12th to 18th day.
Ovulation kit also helps in finding out the fertile period.
Usually gestational age is calculated from the last menstrual period.
If you have conceived, according to your last menstrual period (November 25th), the gestational age for today (December 18th) is 3 weeks and 4 days.
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.