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The first trimester ultrasound is one of the most important exams in the early months of pregnancy. Performed between the 11th and 13th week, it provides essential information about the initial development of the baby and the overall health of the pregnancy - being, for many parents, the first opportunity to see their child.
How is the first trimester ultrasound done? The ultrasound is non-invasive and is usually performed through a transabdominal examination. The procedure is quick, painless and completely safe for both the mother and the baby. In some cases, if a more detailed view is necessary, a transvaginal ultrasound may be performed, although this is rare at this stage of pregnancy. Why is it important? It allows for an early and detailed assessment of the mother's and baby's health. The timely detection of possible changes improves outcomes and allows for planning and monitoring of any complications throughout the pregnancy.
If you have doubts about the exact gestational age or when to schedule this exam, our gynecology and obstetrics team can clarify during a routine consultation.
Helps to identify development problems or complications in the early stages of pregnancy.
Provides an accurate estimate, essential for monitoring the entire pregnancy.
Provides the first opportunity to see the baby and hear its heartbeat.
01
Verifies the viability of the pregnancy and ensures that the embryo is developing inside the uterus.
02
Calculates the expected delivery date through embryo measurements and evaluates if growth is adequate for the pregnancy period.
03
Determines if it is a single or multiple pregnancy.
04
Measures the space at the back of the baby's neck, an early indicator of chromosomal anomalies, such as Down syndrome.
05
From the 6th-7th week, the baby's heartbeat can already be detected, confirming healthy development.
Evaluates the placenta and checks the amount of amniotic fluid, ensuring that the baby's environment is suitable for its development.
It is the window when the measurement of nuchal translucency and the evaluation of fetal morphology have the highest clinical reliability, making it the recommended period for this exam.
No. At this stage, fetal development does not allow for a reliable determination of sex, this information is usually possible from the second trimester ultrasound.
It is usually performed transabdominally. The transvaginal route is only used in specific cases, when a more detailed image is necessary.
No special preparation is necessary. Our team will clarify any specific instructions at the time of scheduling.
Measures the space at the back of the baby's neck, which can be an early indicator of chromosomal anomalies, such as Down syndrome.
From the 6th-7th week, the baby's heartbeat can be heard, confirming healthy development.
Evaluates the placenta and checks the amount of amniotic fluid to ensure that the baby's environment is suitable for its development.
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