Contents:
- Medical Video: How accurate is a due date that is determined by ultrasound?
- The date of delivery is the same as the estimated birth day (HPL) of the baby
- The cause of the date of delivery changed from the estimate
- 1. Incorrectly determine the date of conception (conception)
- 2. Differences in pregnancy
- 3. Differences in the size of the uterus
- 4. Difference in size of the cervix (cervix)
- 5. The position of the baby in the womb changes
Medical Video: How accurate is a due date that is determined by ultrasound?
Childbirth is something that all prospective moms and dads have been waiting for. The older the gestational age, you will be more anxious waiting for the date of delivery. Even though the doctor has estimated the date, it turns out the date of delivery can change at any time, you know. So, why do birth dates often miss estimates? Consider the following review.
The date of delivery is the same as the estimated birth day (HPL) of the baby
The date of delivery is also known as the baby's estimated birth day (HPL). The HPL tells you when you are ready to go through the process of giving birth. In addition, knowing baby HPL is also useful to control the development of your baby during the womb. You will know whether at the time of your HPL your baby is ready to be born and the development is in accordance with the age of your pregnancy.
Although most expectant mothers must be given the date of delivery by a doctor, this is only an estimate. According to the American Academy of Pediatrics, only about 5 percent of women give birth according to the date.
The cause of the date of delivery changed from the estimate
1. Incorrectly determine the date of conception (conception)
The most common way to determine HPL is to determine the first day of last menstruation (HPHT). However, this method is only suitable for those of you who have regular menstrual cycles.
The time of conception or fertilization of the ovum cells by sperm cells may occur 2 weeks after the first day of menstruation. For example, if the baby is usually born at 40 weeks after HPHT, this means that from the time of conception until your HPL is around 38 weeks.
Most of you may forget and just remember when your first day was last. Incorrectly determine the HPHT, it will be wrong in determining the date of conception. As a result, the estimated date of labor also missed.
Well, women who have irregular menstrual cycles will have more difficulty in determining HPL. However, you don't need to worry because your HPL can be estimated by using ultrasound.
2. Differences in pregnancy
The condition of each woman's pregnancy is different. So, it is very possible that the conditions before giving birth are also different.
Generally, pregnancy lasts around 38-40 weeks. However, there are also pregnant women who have to give birth during pregnancy too early (less than 37 weeks) or too old (more than 42 weeks). This can happen for various reasons. For example a history of smoking during pregnancy, stress, uterine or cervical problems, and others.
This condition is the cause of missed birth dates from previous estimates. For this reason, it is important for you to continue to monitor and ensure your pregnancy is in good health to anticipate all possibilities.
3. Differences in the size of the uterus
The size of the uterus is also one of the causes of changing the date of labor. At 12 weeks' gestation, the doctor can feel the upper part of the uterus (fundus) above the pelvis (pelvis). After the age of 18 weeks, the distance between the pelvis and uterus may be the same as the number of weeks after your last menstrual period.
If your uterus is large enough and ready to go through the process of giving birth, then the date of delivery can also be faster than expected.
4. Difference in size of the cervix (cervix)
Research shows that women who have a shorter cervical size, about less than 2.5 centimeters (cm) when measured through ultrasound, have the possibility to give birth early.
Quoted from the International Journal of Obstetrics and Gynecology, 85 percent of women who have a short cervical size, about 1 cm, give birth faster than those with a cervical size of about 2.5 cm.
When the body prepares for pregnancy, the size of the cervix will thin out slowly, so this allows the baby's head to be easier to go down and ready to be born.
5. The position of the baby in the womb changes
The position of the baby helps determine the speed or failure of your labor. If the baby is able to put himself in the labor path well and the location of his head is already below, then you need to prepare for an earlier delivery immediately. While if not, maybe you will have a longer time to give birth or even choose a caesarean section.
