how to calculate your due date

For married couples, pregnancy completes happiness in the household. However, apart from enjoying an enjoyable pregnancy, usually, other things are more awaited by married couples. It is waiting for the time of birth. Before that, make sure you know how to calculate an estimated delivery.

Pregnancy is a process that begins with the meeting of an egg cell with a sperm cell so that fertilization occurs. Then, the egg will develop into an embryo and grow until it becomes a fetus. The process of fetal development in the womb generally lasts nine months to ten days before it is finally ready to be born into the world.

For couples, it is essential to know the gestational age. This will later be very useful for controlling the growth and development of the fetus in the womb. Knowing the gestational age is also helpful in preparing for delivery so that the baby and mother can be healthy and safe.

Then how to calculate the estimated delivery and find out the gestational age? Check out the following review.

The Importance of Knowing Gestational Age and Estimated Delivery

Knowing how old the pregnancy is is very important for pregnant mothers. This is useful to determine the body’s condition and fetal development, whether it takes place generally according to gestational age or not. If the gestational age and development of the baby do not match, it means that there is a problem with your pregnancy and must be addressed immediately so it can’t harm the mother or the fetus in the womb.

While knowing the estimated delivery helps prepare various things related to the baby’s birth process. It is also essential to make sure the baby is born at the right time to be healthy and perfect. Knowing the estimated time of delivery will also help parents prepare all the needs before delivery, including mental and financial. Then, you will be better prepared to welcome the birth of your baby.

Read more: Foods to Increase Male Fertility So Wife Gets Pregnant Fast

How to Calculate Estimated Labor and Gestational Age

Estimated delivery in medical terms is also known as the estimated due date (EDD). This is the time determined by the doctor as the day the baby will be born into the world. To determine this estimated delivery, doctors usually use several ways and methods.

Here’s how to calculate estimated child birth and gestational age commonly used by obstetricians.

1. First Day of Last Menstruation

The first method commonly used to determine the estimated birth is counting from the first day of the last menstrual period or widely known as LMP. The first day of the last menstrual period will be the basis for doctors to calculate the Estimated Due Date (EDD). Usually, the doctor will use a specific formula to make it easier to know the gestational age and estimated delivery.

It will be pretty challenging for women who have irregular menstrual cycles to determine the first day of the last menstruation. Therefore, the doctor will usually ask the mother to remember the last time she had her period. This method will help the doctor know how old your pregnancy and EDD are.

Setting a formula to calculate estimated delivery based on the first day of the last menstruation has less accuracy. Usually, the results obtained from this method of calculating gestational age are possibly missing about seven days both before and after the established EDD.

2. Using USG

Compared to calculating based on the first day of the last menstrual period, calculating EDD using USG has more accurate results. USG itself is a tool commonly used to determine the fetus’s condition in the womb. In this way, the doctor can find out the state of the fetus in more detail so that it will be easier to determine the estimated birth calculator.

The way to determine the gestational age and estimated delivery using USG are done by observing the fetus’s condition in the womb. This includes the shape, movement, development of the fetus’s heartbeat. Later the results of this USG will be used as a reference for doctors to determine the gestational age and the estimated day of birth. Doctors usually use this method if the patient forgets the first day of her last menstrual period.

Read more: Types of Female Fertility Tests for Pregnancy Preparation

3. Through Physical Examination

Besides the LMP formula and USG, the way to determine the gestational age and estimated delivery can also be done by conducting a physical examination directly on the fetus in the mother’s womb. To perform a physical examination of the fetus, there are several methods commonly used by doctors, including:

  • Fetus Movement 

Doctors can find out the gestational age and estimated delivery by paying attention to the fetus’s movements in the womb. Usually, the first fetal movement occurs at 16-18 weeks of gestation. The doctor will know the gestational age and estimated delivery from observing these movements if the LMP of pregnancy is not known.

  • Fundal Height

Another type of physical examination that can be used as a reference for doctors to determine gestational age and estimated delivery is the peak height of the mother’s uterus. Usually, the doctor or midwife will manually feel the top of the uterus and then determine the height of the top of the uterus to determine gestational age when the LMP is unknown.

One example is if the height of the top of the uterus is calculated from the pubic bone is 28 cm, then the gestational age is estimated to have been running at 28 weeks. This method of calculating gestational age and estimated delivery does not have a maximum level of accuracy. However, it can be an alternative if the mother forgets LMP and does not want USG.

  • Using Two Fingers

Using two fingers is another example of calculating gestational age and estimated delivery with a physical examination. This is the simplest way and can be done by pregnant women without the need for tools or the help of a doctor. The method calculates the distance between the pubic bone and the top of the uterus above the stomach. If the top of the uterus is below the navel, then every two fingers apart, you can count as two weeks pregnant. Even it’s not the best way to find out your exact due date, it doesn’t hurt to give it a try.

During pregnancy, the mother needs to have regular check-ups. This ensures that the fetus in the womb can grow and develop properly. This method is also helpful in preventing problems with fetal growth that can harm the mother and the womb. Therefore, knowing the estimated parturition is one way to ensure that the pregnancy goes well until delivery time arrives.

Of all the types of examinations that can be used to determine gestational age and estimated delivery above, USG is the best way to give the most accurate results. However, doctors may also use the Neagle formula to calculate gestational age to determine your estimated child birth or due date.

Those are some ways to determine the gestational age and estimated delivery that pregnant women need to know. By knowing it, you can ensure the fetus is developing correctly according to the age of the womb. Therefore, if you show pregnancy symptoms, immediately go to the doctor for an examination and calculate the estimated delivery for the safety of the mother and fetus.