
There are various ways to estimate the day of ovulation. If you can determine that day, you will come close to identifying your date conception. Women undergo so many physiological and psychological changes during and after gestation. This is especially accurate if you have a regular 28-day menstrual cycle. Therefore, the most likely date of conception is on the day of ovulation if there is sperm around. Using a reverse due date calculator can help you estimate when your baby was conceived.
Accurate conception calculator how to#
How to Calculate Your Approximate Conception Date.5 Ways to Calculate Your Estimated Conception Date.Timing of intercourse - The timing of intercourse around ovulation can also influence the day of conception, and the lifespan of the egg and sperm are factors to consider when calculating how the intercourse date relates to the possible conception date.Ovulation prediction accuracy - Accuracy by which the day of ovulation can be pinpointed can have a dramatic effect on conception date calculations.Just over 25% of women have cycles that vary less than 1.5 days, so calculating conception would be easier for these women. Cycle regularity - Having regular menstrual cycles makes it easier to predict when ovulation occurs, and the 2020 study referenced above found that 69% of women have cycles that vary less than six days in length from one month to the next.

A 2020 study of 1.5 million women published in the Journal of Medical Internet Research found that over 91% of women had a menstrual cycle between 21 and 35 days in length. Cycle length - The usual average length of a woman's menstrual cycle is 28 days, but there's a lot of variation in the exact numbers.The day of conception depends on the following: Is the pregnancy calculator accurate Only 5 of pregnancies arrive on their due date with the majority born two weeks either side, but having a better idea. The accuracy of estimating your date of conception depends on a number of factors about your menstrual cycle and ovulation, as well as facts about the egg and the sperm. If you are wondering how to determine a conception date, there are several methods. Factors That Determine Conception Date Accuracy
