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Writer's pictureCristina Mumme

What to Expect During Your First-Trimester OB Ultrasound


A couple holding a women's pregnant belly for First-Trimester OB Ultrasound.

During the first trimester of pregnancy, an ultrasound is one of the most important steps in confirming and monitoring your baby’s early development. This initial scan provides essential prenatal information, from establishing your due date to assessing the health of both your baby and your reproductive system.


At Nola Diagnostic Ultrasound, we offer first-trimester OB ultrasounds for New Orleans moms, including transvaginal ultrasounds (if needed), to ensure the best possible assessment of your pregnancy. Here's what to expect during this vital first look at your baby.


Understanding the First-Trimester OB Ultrasound

The primary purpose of a first-trimester ultrasound is to assess the health of your pregnancy and gather important information about your baby’s development. This ultrasound allows your sonographer to evaluate the baby, uterus, and ovaries, establishing a baseline for the pregnancy and determining key details like your due date. 


In some cases, a transvaginal ultrasound may be required, especially if you're earlier on in your pregnancy. This type of ultrasound helps provide clearer images of the developing embryo and surrounding structures for a more detailed assessment.


Timing and Why It’s Important: 6-13 Weeks

The window for your first OB ultrasound generally falls between 6 and 13 weeks of pregnancy. 


During this stage, the ultrasound can evaluate the baby's heartbeat, assess the position of the gestational sac within the uterus, and help rule out conditions like ectopic pregnancy (where the embryo implants outside the uterus).


This scan is particularly valuable for those looking to evaluate their baby’s development or those experiencing any symptoms requiring early assessment, such as spotting or cramping.


The Role of the Transvaginal Ultrasound

If you're between 6 and 11 weeks pregnant, or if your healthcare provider believes they need a clearer view of your uterus and ovaries, a transvaginal ultrasound may be performed. This type of ultrasound involves the sonographer gently inserting a small, specially designed probe into the vagina to get more detailed images than are typically possible with an abdominal ultrasound at this early stage of pregnancy.


While the idea of a transvaginal ultrasound might seem intimidating, it's a common and safe procedure that provides high-quality images, especially when the baby is still very small. Rest assured, the process is quick, and our sonographer ensures your absolute comfort throughout the scan.


What Does the First-Trimester Ultrasound Evaluate?

During your first-trimester OB ultrasound in New Orleans, we’ll evaluate several key aspects of your pregnancy:


  • Baby’s Development: The ultrasound will capture images of your baby, allowing us to assess growth and development. By measuring the baby's length from head to rump, known as the crown-rump length (CRL), we can determine how far along your pregnancy is and establish a due date.

  • Uterine Environment: The ultrasound evaluates the health of your uterus and surveys for any irregularities, such as fibroids or cysts, that may affect the pregnancy. We also assess the location of the gestational sac to ensure the baby is properly implanted within the uterus.

  • Ovary Health: The ultrasound also examines your ovaries to rule out any concerns, such as ovarian cysts, which are common in early pregnancy but usually benign.

  • Ectopic Pregnancy Survey: The ultrasound plays a critical role in identifying ectopic pregnancies, a condition where the embryo implants outside the uterus, usually in the fallopian tubes. If this condition is present, early detection is essential for your safety, and the ultrasound can help pinpoint the issue.

  • Twins or Multiples: If you're expecting twins or multiples, the ultrasound will confirm this exciting news. We offer an add-on service for twin pregnancies, available at $100, which provides extra monitoring and assessment during this first ultrasound.


Establishing Your Due Date

One of the key outcomes of your first-trimester ultrasound is establishing an accurate due date. Although you may have a general idea based on your last menstrual period, the ultrasound allows for more precise dating by measuring the baby’s crown-rump length. 


This early measurement is highly accurate for determining gestational age, which is important for tracking your baby's development and planning future appointments. Having a clear due date helps your healthcare provider monitor your pregnancy more effectively and ensures that important milestones, such as screening tests, are done at the right time.


Preparing for Your Early Pregnancy Ultrasound

At Nola Diagnostic Ultrasound, we’re here to make your first OB ultrasound experience as comfortable and straightforward as possible. Here are a few tips to help you prepare for your appointment:


  • Hydration: In most cases, you will be asked to arrive with a full bladder for your ultrasound. This helps improve the clarity of abdominal images by pushing the uterus into a better position. However, if a transvaginal ultrasound is required, you’ll be asked to empty your bladder before the scan.

  • Clothing: We recommend wearing comfortable, two-piece clothing that allows easy access to your abdomen, as you’ll be lying down during the scan.

  • Expect a Quick Scan: Most first-trimester ultrasounds take under 30 minutes, depending on the specifics of your pregnancy. If additional assessments, like a twin add-on, are required, the scan may take slightly longer.

  • Emotional Preparation: It’s normal to feel a mixture of excitement and nervousness before your first ultrasound, especially if it’s your first pregnancy. We’re here to answer any questions and provide you with a calm, reassuring environment for this important milestone.


What Happens After the Ultrasound?

Once your ultrasound is complete, your sonographer will review and analyze the images to ensure a comprehensive assessment has been made. A detailed radiology report will be prepared and sent to your healthcare provider, typically within 24 to 48 hours, ensuring they have all the information needed to guide your next steps in prenatal care. 


Your provider will review the results, and during your follow-up appointment, they will discuss any important findings with you, confirm your due date, and outline any further evaluations or screenings that may be necessary. If any concerns are noted, your provider will discuss additional testing or monitoring to ensure the best care moving forward.


Book Your First-Trimester OB Ultrasound in New Orleans

At Nola Diagnostic Ultrasound, we prioritize your convenience with flexible scheduling and no wait times, making it easy to fit your first-trimester OB ultrasound into your busy routine. Particularly accommodating for fertility patients, we ensure a supportive and comfortable experience throughout your visit.


To book your early pregnancy ultrasound in Metairie, simply have your provider send you an order, fill out our intake form, and upload the order. After that, you can choose a time and date that works best for you. 


Have booking questions? Feel free to contact us via our website, email at womensultrasoundnola@gmail.com, or call us at 504-500-7870 for a faster response. 


We look forward to supporting you during these exciting early weeks of your pregnancy!

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