How to calculate Due Date in pregnancy

How to calculate Due Date in pregnancy

due date in  pregnancy

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The last few days of pregnancy are exciting times. But when your due date has passed, waiting for work to begin can also be stressful.

Many parents become anxious. If there is no specific problem, the child is very likely healing, however.

When a pregnancy continues its full normal course (about 40 weeks), it is called a period pregnancy or a full-term pregnancy.

If a baby is born before 37 weeks of pregnancy, it is considered an preterm birth.

Being born too early is associated with various risks to the baby.

A pregnancy that continues for more than 42 weeks is called a post-term, prolonged or overdue pregnancy. 

About 70 women out of 100 give birth on or before a given date.

 In 37 out of 100 women, contractions begin on their own within two weeks of the due date. But it takes longer in 6 out of 100 women.

The cause of the child’s overdose is not usually known. Sometimes it is due to genetic tendency (hereditary).

Women who already have a baby who have arrived much later than their due date are likely to have overdose babies in future pregnancies.

Being born after the 40th week only rarely bothers the child.

To be on the safe side, however, the doctor or midwife will begin to investigate more to see if she is doing it.

1) How is the baby’s due date calculated?

It is important to know the approximate estimated date because many decisions are based on this estimate.

 For example, the due date is important for determining when maternity leave begins, and deciding whether to induce labor or to perform additional examinations.

But the child’s due date or “estimated delivery date” (EDD) is never accurate. Even then it is calculated by due date calculator.

There are two main ways to estimate how far a pregnancy is: calculating the due date based on the last menstrual period, and trying to determine the age of the unborn child by ultrasound scans to determine how old she is.

2) Calculating the due date based on the last menstruation

The length of pregnancy is always assumed to be 40 weeks (or 280 days) – even though very few pregnancies last for 280 days.

The starting date of these 40 weeks is the first day of your last menstruation.

But this estimate is not very reliable because women do not always remember what that day was like.

And some women still have mild bleeding at the beginning of pregnancy, around the time when they have reached their normal period.

So they may be pregnant for a few weeks longer than they realize.

What’s more, periods are not always four weeks apart. And your period can be imagined a little later than if the child is assumed in the calculation.

These are further factors that make it difficult to calculate the exact due date.

Due to frequent mistakes in estimating when pregnancy begins, doctors and midwives sometimes adjust the due dates calculated in this way — for example, based on the size of the baby in an ultrasound scan during early pregnancy.


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