Pregnancy Conception Calendar: Calculate Your Date

One of the ways in which the estimated due date can be determined is by the conception method. This may prove difficult as the exact date when conception occurs cannot be determined for certain. Conception does not necessarily take place at the time that sexual intercourse takes place.

The exact date of ovulation may also not be easy to establish and it is possible for ovulation to take place even after sexual intercourse has happened. When the sperm enters the woman’s body, it can survive for up to three days after intercourse.

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If ovulation has not already occurred and if it still doesn’t occur in these three days, the sperm is unable to fertilize the egg and dies.

So even if a woman is aware of the date of sexual intercourse, conception could have still taken place on any of the following three days as well.

As such there is no way of determining when the union between the egg and the sperm occur and when conception actually takes place. As such maintaining a pregnancy calendar by the conception method is not very accurate. Even if you are willing to add or subtract a day or two to account for those three days, it is also possible that your baby many not follow a forty week gestation period. Forty weeks of pregnancy is considered the average duration, but not all babies follow it. As such there could be additional discrepancies in your pregnancy calendar.

Calculate your Conception Date

So, then how is pregnancy calculated? It is important to note that it is difficult to calculate the precise due date in most cases. A more accurate method is to count the start of pregnancy from the first day of your last menstrual period and continue till forty weeks after that.

In this method as well, one must keep in mind that menstrual cycles are different for every woman. The average menstrual cycle is said to consist of a 28 day cycle. But this can vary and consist of as less as 22 days, and as much as 44 days. Try and determine the duration of your menstrual cycle. If yours is a 28 day cycle, then you can add forty weeks, that is 280 days, to the first day of your cycle and you will arrive at your estimated due date. If one is using the pregnancy due date calendar by conception, then knowing the date of ovulation may help. Ovulation can be predicted by tracking the basal body temperature. This will give a fair idea of the due date by adding 266 days to the date of ovulation. Besides the conception method, nowadays one can estimate the due date through techniques like ultrasound and HCG levels, which are safe and far more accurate.

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