Pregnant women need to undergo regular ultrasound examinations during the pregnancy check-up process. After the examination results are available, most pregnant women are confused about the contents of the report. Some pregnant women can no longer remember their gestational age and only know that the gestational age can be determined through an ultrasound report. So, how can the gestational age be determined through an ultrasound report?
The determination of gestational age through ultrasound is based on data such as fetal biparietal diameter, femur length, and head circumference measured by ultrasound. The degree of fetal development varies at different gestational weeks, and through these changes in data, one can roughly understand how many weeks a pregnant woman is pregnant. However, the development speed of each fetus is different, and there may be some errors in determining the gestational age through ultrasound.
If a pregnant woman remembers her last menstrual period clearly, she can also calculate her gestational age based on the date of her last menstrual period. For example, if the end date of the last menstrual period is April 1st, then every seven days is a gestational week. By May 14th, it will be six weeks of pregnancy, and so on. Every seven days, it will increase by one gestational week.
Pregnant women need to remember that calculating gestational age is based on the start date of the last menstrual period. It is beneficial for pregnant women to have a clear understanding of the gestational age, as it can more accurately calculate the expected delivery date. This allows them to pack their bags before the due date, avoiding being flustered during labor. Additionally, they can more accurately grasp the timing of prenatal check ups and avoid missing any items.
