Pregnancy Calculator Due Date| Pregnancy Calculator Based On Due Date
The first day of LMP or last menstrual period plays a big role in foreseeing the delivery date of a mother. This is vital because from the last menstruation, comes the sprout of pregnancy. There is no precise date to tell when the baby will arrive. There are many factors in determining the accuracy of the pregnancy calculators. For example, to have an accurate computation, a woman must have been regular in her menstrual period and her ovulation must be on the 14th day of her menstrual cycle. If these are all true then her “conception” will happen two weeks following her last menstrual period (LMP). A mother will be believed to be bearing with a child for six weeks which is two weeks after her recent LMP. At the point of conception, the fetus is said to be two weeks old.
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Due Delivery Date
Most licensed obstetrician – gynecologists and the online calculators use the “Naegel’s Rule”. It is in the formula of subtracting three months, adding seven days and then adding one year to the first day of your LMP. For example, the first day of your LMP is May 30, 2010. Subtract three months which makes it February, and then add seven days. The result will be March 9; and then add one year. Your EDC or “expected date of confinement” will be on March 9, 2011 because 37 days minus 28 days (February has 28 days). Dr. Naegel believed that the menstrual cycle of a woman is up to twenty-eight days. Hence, their ovulation date happens on the day 14. Furthermore, he assumed that the whole period of gestation of mothers are 266 days following the conception or 280 days following the first date of LMP.
Pregnancy Calculator Due Date| Pregnancy Calculator Based On Due Date: Advice
Remember that pregnant women may deliver two weeks before or two weeks after the expected date of confinement. This could be owed to the travel time of the fertilized ovum towards the uterus for implantation and conception. Or this could be attributable to the wrong date given by the mother to compute for the EDC, otherwise, it could be from the misinterpretation from the implantation bleeding as the actual menstruation. It may seem so similar that women tend to give the wrong date.
As regards to the ovulation period that is assumed by Naegel that in every 28 days of a menstrual cycle, the day 14 is the ovulation, it may not be the same for other women. Some have a 31 day cycle, which makes the day 17 as the ovulation date. The “Naegel’s Rule” also have flaws like the maternal risk factors, nutritional status of the mother and the prenatal care aren’t taken into consideration.
Pregnancy Calculator Due Date| Pregnancy Calculator Based On Due Date: Direction
On the other hand, the more consistent diagnostic exam is the Ultrasound (UTZ). In here, you will see how many weeks old is your baby. Most physicians usually advise to let you have an ultrasound for them to be certain of how many weeks or months had passed before you consulted. To achieve accurate results, the ultrasound test should be done within the 1st month to the 13th week age of gestation. What’s more is that the fetal heart tones, fetal movements, and fundal length can also be used to calculate the delivery date of the fetus.
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