How Can I Determine My Conception Date. Like many conception calculators, the pregnancy wheel uses the date of your lmp. How to determine conception date from due date takes a few calculations that even an 8 year old can manage, though with difficulty.
Since the exact date of conception is hardly ever known, the conception calculator can use the first day of the last menstrual period (lmp) you have to determine. The estimation of conception date is based on this, but is rarely ever exact since it is difficult to know exactly when ovulation occurs. You can use it to find out when your mother conceived by entering your birth date.
Ovulation usually occurs about two weeks after your menstrual period.
The conception date is found by subtracting 266 days (38 weeks), from your due date. You can use it to find out when your mother conceived by entering your birth date. The conception calculator figures the gestational age of the baby to determine the date of conception. When did i conceive based on ovulation date?