How to tell gestational age

Gestational age is one of the main parameters used in obstetrics to monitor the development of the fetus and determine the probable date of delivery. There are different methods for calculating gestational age, and in this article we will explain some of them.

Last Menstruation Method

One of the most common methods for calculating gestational age is the last menstruation method. In this method, it considers whether the first day of the last menstruation as the onset of pregnancy. From that date, it is possible to estimate the gestational age counting the weeks and the days.

For example, if the last menstruation occurred on January 1, the pregnancy will start on that date. If the woman is 12 weeks and 3 days of gestation, it means that she has been pregnant for 12 weeks and 3 days from January 1st.

Ultrasound

Ultrasound is another method widely used to calculate gestational age. Through this examination, it is possible to measure the fetus size and estimate the gestational age based on this measure.

The obstetrician performs ultrasound and, from the measures obtained, determines the gestational age. This method is considered more precise than the last menstruation method, especially in the first months of pregnancy.

Method Combination

In some cases, it is necessary to combine both methods to obtain a more accurate estimate of gestational age. For example, if ultrasound indicates a gestational age of 10 weeks, but the woman is sure she has been pregnant for 12 weeks according to the last menstruation method, the doctor may consider an 11 week gestational age.

FINAL CONSIDERATIONS

It is important to note that gestational age is an estimate and may vary according to each woman. In addition, it is essential to have medical follow -up throughout the pregnancy to ensure the health of mother and baby.

We hope this article has clarified your questions about how to tell the gestational age. If you have more questions, do not hesitate to look for a specialist doctor.