{"id":83609,"date":"2025-11-04T21:10:52","date_gmt":"2025-11-04T20:10:52","guid":{"rendered":"https:\/\/heloa.app\/?p=83609"},"modified":"2025-12-12T11:29:02","modified_gmt":"2025-12-12T10:29:02","slug":"first-trimester-ultrasound","status":"publish","type":"post","link":"https:\/\/heloa.app\/fr\/blog\/pregnancy\/health\/first-trimester-ultrasound","title":{"rendered":"First trimester ultrasound, timing, findings, and what to expect"},"content":{"rendered":"\n<p>Few moments are as stirring for expecting parents as watching those hazy, flickering life signs on the ultrasound monitor for the very first time. Curiosity swirls alongside the thrum of anticipation\u2014Will there be a heartbeat? Is everything positioned well inside the uterus? Am I really at the right number of weeks? The <a href=\"https:\/\/heloa.app\/en\/blog\/pregnancy\/development\/first-trimester-of-pregnancy\">first trimester<\/a> ultrasound stands as both a guardian and a witness: it confirms pregnancy location, listens for cardiac activity, estimates due dates with unmatched accuracy, and quietly searches for hints of twins or the rare marker that might need extra attention down the line. For families navigating <a href=\"https:\/\/heloa.app\/en-in\/blog\/pregnancy\/development\/first-trimester-of-pregnancy\">early pregnancy<\/a> uncertainties\u2014anxious over dreamlike symptoms, bracing for relief\u2014this early window offers concrete, visual reassurance. You might wonder, \u201cWhat exactly will they see? Will answers be immediate? How soon will I know everything is on track?\u201d Each of these puzzles finds its place as the ultrasound probe traces gentle circles and captures those first grainy glimpses of a new life. Let\u2019s explore what a first trimester ultrasound reveals, how the experience feels, what results you might encounter, and how each detail shapes your path forward.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whythefirsttrimesterultrasoundmattersforparents\">Why the first trimester ultrasound matters for parents<\/h2>\n\n\n\n<p>Regardless of whether this is your first or fifth pregnancy, the need for clarity echoes in every waiting room. The first trimester ultrasound delivers on this need for certainty, providing evidence that the pregnancy is developing as expected (or, gently, that a change of expectations is needed). Key details come alive during this scan:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Confirming viability<\/strong>\u2014that is, you\u2019ll actually see if the baby\u2019s heart is beating, and whether the pregnancy is safely settled inside the uterus (not outside, where complications are more likely).<\/li>\n\n\n\n<li><strong>Accurate dating<\/strong>\u2014the crown\u2013rump length (CRL) measured on ultrasound during this stage beats any calendar calculation by several days, resetting your estimated due date if needed.<\/li>\n\n\n\n<li><strong>Screening early for potential concerns<\/strong>\u2014features like <strong>nuchal translucency<\/strong> (the small pocket of fluid behind baby\u2019s neck), when measured at the perfect time, offer a non-invasive way to check for some genetic conditions without any discomfort to your baby.<\/li>\n\n\n\n<li><strong>Guiding next steps<\/strong>\u2014from when to repeat scans and whether extra tests are helpful, to pinpointing when to get in touch for pain or bleeding, this scan is a starting point for careful, personalised care.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"purposeandtimingfirstglimpsesfirstanswers\">Purpose and timing: first glimpses, first answers<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"earlyviabilityanddating610weeks\">Early viability and dating (6\u201310 weeks)<\/h3>\n\n\n\n<p>Here, the first trimester ultrasound often uses a <strong>transvaginal probe<\/strong>\u2014think of it as a slim, covered wand, providing crisp views when everything is still tiny. In just a few minutes, the sonographer checks for a <strong>gestational sac<\/strong> (that first bubble of pregnancy), a round <strong>yolk sac<\/strong> (the embryo\u2019s first source of nutrients), a hint of the <strong>fetal pole<\/strong>, and that all-important flicker of cardiac motion. When measured between six and ten weeks, the CRL gives a highly precise estimate for your due date\u2014better than remembering last period dates that often blur with time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"nuchaltranslucencywindow1113weeks6days\">Nuchal translucency window (11\u201313 weeks + 6 days)<\/h3>\n\n\n\n<p>Most clinics suggest the main first trimester ultrasound within this window. The baby has now grown enough for key measurements: <strong>crown\u2013rump length<\/strong>, <strong>heartbeat<\/strong>, and <strong>nuchal translucency<\/strong> if you opt for early genetic screening. For families using IVF or similar techniques, an extra scan a few weeks after embryo transfer often checks for pregnancy location and viability, and a later first trimester ultrasound focuses again on the NT and growth markers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"commonreasonstoscheduleafirsttrimesterultrasound\">Common reasons to schedule a first trimester ultrasound<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unexpected or heavy bleeding, or any pelvic pain<\/li>\n\n\n\n<li>Confirming this is a viable pregnancy inside the uterus<\/li>\n\n\n\n<li>Estimating how many weeks along you are (especially if periods were irregular)<\/li>\n\n\n\n<li>Checking if you\u2019re expecting twins (or more), and if so, what kind<\/li>\n\n\n\n<li>Measuring NT as part of <strong>first trimester screening<\/strong><\/li>\n\n\n\n<li>Following up after uncertain or abnormal initial blood tests<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whatclinicianscheckandrecord\">What clinicians check and record<\/h2>\n\n\n\n<p>Your ultrasound report won\u2019t just say \u201call is fine.\u201d Each detail is considered:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gestational sac<\/strong>: location, size (measured as mean sac diameter or MSD), and presence<\/li>\n\n\n\n<li><strong>Yolk sac<\/strong>: shape and size, looking for the healthy, rounded form<\/li>\n\n\n\n<li><strong>Fetal pole and heartbeat<\/strong>: counted and documented, with fetal heart rate (FHR) typically 90\u2013110 bpm at the earliest, rising to 120\u2013170 bpm by the end of the trimester<\/li>\n\n\n\n<li><strong>CRL<\/strong> for dating\u2014the gold-standard measurement for this stage<\/li>\n\n\n\n<li><strong>Uterus and ovaries<\/strong>: checking for fibroids, cysts, or anything unusual like a subchorionic hematoma (a collection of blood that is common but usually resolves)<\/li>\n\n\n\n<li>Special attention if concerns arise, such as possible molar pregnancy (unusual growth pattern inside the uterus) or findings that might suggest an ectopic pregnancy<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ultrasoundtypestransvaginalandtransabdominal\">Ultrasound types: transvaginal and transabdominal<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"transvaginalultrasoundprecisionsearlyally\">Transvaginal ultrasound: precision\u2019s early ally<\/h3>\n\n\n\n<p>Might sound a little daunting at first, but for ultra-early pregnancy, nothing beats the clarity of a transvaginal scan. A covered probe is gently inserted, and after a few seconds of mild pressure or cramping, high-quality images reveal the earliest details. Privacy is respected, you may bring a support person, and the process is usually quick\u2014less than ten minutes for most.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"transabdominalultrasoundtheclassicview\">Transabdominal ultrasound: the classic view<\/h3>\n\n\n\n<p>As pregnancy progresses (even after just a few weeks), a transabdominal first trimester ultrasound\u2014applied via your tummy with some cool gel\u2014often provides enough information. A not-too-full, not-too-empty bladder is the best friend of this technique, as it helps make the uterus easier to visualise. Limitations exist if your pregnancy is still very early or the position is tricky, but for most, this is a comfortable, routine part of <a href=\"https:\/\/heloa.app\/en\/blog\/pregnancy\/health\/prenatal-care-essentials-healthy-pregnancy\">pregnancy care<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"whatdoestheappointmentfeellike\">What does the appointment feel like?<\/h3>\n\n\n\n<p>Expect about 20\u201330 minutes for the scan itself. You\u2019ll see the screen, often as the sonographer explains what appears\u2014\u201cHere\u2019s the gestational sac\u2026 and now the heartbeat!\u201d There\u2019s always space for questions, and if a <strong>nuchal translucency<\/strong> measurement is needed, you may be asked to move or cough, encouraging baby into the best position.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"earlyfindingswhatparentswanttoknow\">Early findings: what parents want to know<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"crlanddatingaccuracy\">CRL and dating accuracy<\/h3>\n\n\n\n<p>No guessing here. The neutral-position CRL on <strong>first trimester ultrasound<\/strong> is the single most accurate way to settle the due date\u2014a small difference from your period dates is common and usually nothing to worry about.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"gestationalsacmsdandyolksac\">Gestational sac, MSD, and yolk sac<\/h3>\n\n\n\n<p>Before baby is visible, the <strong>gestational sac<\/strong> and its <strong>MSD<\/strong> (average size, measured in millimeters) offer clues as to how old the pregnancy really is. A <strong>yolk sac<\/strong> should look round and proportional; an odd shape or very large yolk sac has a stronger chance of signalling a possible miscarriage, so close follow-up is considered.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cardiacactivityandnormalheartrates\">Cardiac activity and normal heart rates<\/h3>\n\n\n\n<p>Typically, a <strong>heartbeat<\/strong> appears on ultrasound as early as 5.5 weeks (using transvaginal method), rising from around 90\u2013110 bpm at six to seven weeks, and stabilising near 120\u2013170 bpm later. No heartbeat when one would be expected? Waiting seven to fourteen days and repeating both ultrasound and blood tests often clarifies things.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"nuchaltranslucencyntwhatdoesitmean\">Nuchal translucency (NT): what does it mean?<\/h3>\n\n\n\n<p>The <strong>nuchal translucency<\/strong> is a small clear area at the back of baby\u2019s neck. Measured between 11 and 13+6 weeks, an increased thickness sometimes suggests a higher chance for certain chromosomal conditions (such as Down syndrome), but it is not diagnostic on its own. This measurement is done by trained staff under strict protocols\u2014you might be asked to wait, move, or try a gentle cough to help baby get into position.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"earlyanatomy\">Early anatomy<\/h3>\n\n\n\n<p>Some major structural changes can be spotted even this early. Absent cranial vault (acrania), large abdominal wall openings, or cystic hygroma (a specific swelling in baby\u2019s neck)\u2014these rare findings prompt a quick referral to specialists, and plenty of support is provided.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"firsttrimesterscreeningtestsandtechniques\">First trimester screening: tests and techniques<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"combinedfirsttrimesterscreening\">Combined first trimester screening<\/h3>\n\n\n\n<p>A <strong>first trimester ultrasound<\/strong> with NT measurement, combined with blood markers (PAPP-A and free <a href=\"https:\/\/heloa.app\/fr\/blog\/grossesse\/sante\/hormone-beta-hcg\">beta-hCG<\/a>) and maternal age, predicts a numerical risk score for chromosomal conditions (such as trisomy 21, 18, and 13). It\u2019s a probability\u2014not a \u201cyes\/no\u201d answer. Both before and after, time is given to explain what the numbers mean, allaying fears and offering a clear route through the next choices.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"noninvasiveprenataltestingnipt\">Non-invasive prenatal testing (NIPT)<\/h3>\n\n\n\n<p>Parents seeking more accuracy\u2014often for peace of mind\u2014can opt for <strong>NIPT<\/strong>. This test captures fragments of placental DNA floating in the mother\u2019s blood (from around 9\u201310 weeks), offering a high degree of confidence for detecting common chromosomal anomalies, including trisomy 21. For some, NIPT is an added or standalone screening; for others, it may be reserved for higher risk or after an initial screen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"followupafterahighriskscreen\">Follow-up after a high-risk screen<\/h3>\n\n\n\n<p>When a screen result points to higher risk, options include another round of risk assessment (with NIPT) or diagnostic confirmation with <strong>chorionic villus sampling (CVS)<\/strong> late in the first trimester, or <strong>amniocentesis<\/strong> in the second. Dedicated professionals explain the process, risks, and what each test actually checks\u2014making it easier to understand where you stand and what happens next.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whatthefirsttrimesterultrasoundcanandcannotreveal\">What the first trimester ultrasound can\u2014and cannot\u2014reveal<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>What it can show:<\/strong> gestational sac and yolk sac, embryo, fetal heartbeat, highly accurate CRL, NT thickness, and a handful of larger structural changes<\/li>\n\n\n\n<li><strong>What it cannot show:<\/strong> fine details, which become clearer only in later scans\u2014technical factors like baby\u2019s position and even maternal build can influence what\u2019s visible<\/li>\n<\/ul>\n\n\n\n<p>Even a thicker-than-average NT is not a diagnosis: it prompts only deeper discussion, possible further blood tests, or perhaps targeted procedures based on your unique picture.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whenthingsdontgoasplannedearlycomplications\">When things don\u2019t go as planned: early complications<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Anembryonic gestation or missed miscarriage<\/strong>: sometimes the gestational sac grows, but remains empty, or the baby stops growing after previous heart activity. Borderline cases mean waiting and repeating tests before acting, often seven to fourteen days apart.<\/li>\n\n\n\n<li><strong>Ectopic pregnancy or pregnancy of unknown location<\/strong>: if a <strong>first trimester ultrasound<\/strong> finds an empty uterus but an abnormal mass or fluid in the pelvis, swift action and close monitoring follow. Heavy pain or bleeding? Immediate medical care is warranted.<\/li>\n\n\n\n<li><strong>Molar pregnancy<\/strong>: a very specific, unusual pattern in the uterus alongside markedly increased hCG points here, and management moves forward with coordination.<\/li>\n\n\n\n<li><strong>Multiple pregnancies and chorionicity<\/strong>: early scans spot whether twins share the same placenta or not, shaping follow-up. Dichorionic (two placentas) is less risky than monochorionic (one shared placenta)\u2014a \u201clambda sign\u201d suggests the former, a \u201cT-sign\u201d the latter.<\/li>\n\n\n\n<li><strong>Subchorionic hematoma or adnexal cysts<\/strong>: a small blood collection by the sac is fairly common and often harmless. Large hematomas need closer observation.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"safetypreparationandyourexperience\">Safety, preparation, and your experience<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"safety\">Safety<\/h3>\n\n\n\n<p><strong>First trimester ultrasound<\/strong> utilises sound waves, not X-rays. No evidence exists that it harms baby or parent when operated at medical standards and with proper duration and settings. Early Doppler use is limited to particular indications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"preparationtips\">Preparation tips<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bladder matters: moderately full makes transabdominal scans clearer, an empty bladder is preferred for transvaginal.<\/li>\n\n\n\n<li>Dress in comfortable clothes, allow easy abdominal access.<\/li>\n\n\n\n<li>Carry any earlier test reports or relevant paperwork\u2014especially if referred from a fertility clinic or have recent blood test results.<\/li>\n\n\n\n<li>Jot down questions or worries; every inquiry is valid and deserves a careful answer.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"theemotionalspectrumispartoftheexperience\">The emotional spectrum is part of the experience<\/h3>\n\n\n\n<p>Everyone processes these moments differently. Some laugh, a few quietly cry, others simply grip their partner\u2019s hand until results are read. Your thoughts, doubts, and hopes all have space here. If having a chaperone or a trusted support person soothes nerves, you are free to ask.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whenthescanisunclearnextsteps\">When the scan is unclear\u2014next steps<\/h2>\n\n\n\n<p>If visualization is poor\u2014perhaps due to very early timing, a tilted uterus, body shape, or scar tissue\u2014a plan emerges: repeat imaging after seven to fourteen days (often paired with blood tests), plus clear advice on what symptoms should trigger prompt contact.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"practicalchecklistsforparents\">Practical checklists for parents<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"beforethescan\">Before the scan<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carry all previous test results and fertility clinic paperwork.<\/li>\n\n\n\n<li>Follow bladder instructions provided by your clinic.<\/li>\n\n\n\n<li>Wear clothing suitable for abdominal access.<\/li>\n\n\n\n<li>Make a list of queries\u2014on dating, screening, next appointments, and emergency contacts (especially for pain or heavy bleeding).<\/li>\n\n\n\n<li>Mental preparation: nerves are normal. A support person or chaperone can make a big difference.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"afterthescan\">After the scan<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Clarify the significance of every measurement.<\/li>\n\n\n\n<li>Ask about follow-up appointments or further imaging\u2014get clarity on when and how results reach you.<\/li>\n\n\n\n<li>Know who to call\u2014bleeding, fever, or severe pain all require clear instructions for emergencies.<\/li>\n\n\n\n<li>If screening is performed, note when to expect those results and what kind of support or counseling is offered if the risk requires attention.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"understandingyourultrasoundreport\">Understanding your ultrasound report<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Abbreviations you\u2019ll encounter: <strong>CRL<\/strong> (crown\u2013rump length), <strong>GA<\/strong> (gestational age), <strong>EDD<\/strong> (estimated due date), <strong>FHR<\/strong> (fetal heart rate), <strong>GS<\/strong> (gestational sac), <strong>MSD<\/strong> (mean sac diameter), <strong>YS<\/strong> (yolk sac), <strong>NT<\/strong> (nuchal translucency)<\/li>\n\n\n\n<li>Remember, risk scores from screening provide <strong>probabilities<\/strong>, not final answers. High risk leads to offers of further testing\u2014including <strong>NIPT<\/strong> (accurate, noninvasive), <strong>CVS<\/strong>, or <strong>amniocentesis<\/strong> (both diagnostic but carrying small risks).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"logisticscostsandgettingyourreport\">Logistics, costs, and getting your report<\/h2>\n\n\n\n<p>A <strong>first trimester ultrasound<\/strong> can be done in a variety of centers\u2014maternity clinics, radiology departments, or specialised fetal medicine units. Experienced sonographers carry out the scan, and results are shared by the healthcare team directly or via digital patient portals. NT measurements demand special training for accuracy. Prices vary widely; ask for the expected out-of-pocket costs and whether you\u2019ll receive a printout or digital copy. Clinical images always trump keepsake pictures; for personal mementos, check if your provider offers a print.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"keytakeaways\">Key Takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>First trimester ultrasound<\/strong> (typically 6\u201313+6 weeks) is the key to confirming healthy pregnancy, exact dating, early detection of twins, and safe first trimester screening.<\/li>\n\n\n\n<li>Most have the <strong>main scan between 11 and 13+6 weeks<\/strong>, but earlier ultrasounds support those with pain, bleeding, prior losses, or IVF treatments.<\/li>\n\n\n\n<li>A \u201cnormal\u201d scan gives real comfort, knowing many details become visible only later in pregnancy.<\/li>\n\n\n\n<li>Sound waves, not radiation: <strong>first trimester ultrasound<\/strong> is trusted and safe when used as recommended by qualified professionals.<\/li>\n\n\n\n<li>Prepare well\u2014bring earlier notes, manage your bladder, have those questions ready\u2014and expect honest, respectful communication.<\/li>\n\n\n\n<li>Uncertain results or incidental findings aren\u2019t verdicts; they\u2019re guideposts for next steps and follow-up.<\/li>\n\n\n\n<li>Professional guidance is readily available. And for ongoing support, insights, and even tailored child health questionnaires, <a href=\"https:\/\/app.adjust.com\/1g586ft8\" target=\"_blank\" rel=\"noopener\">download the Heloa app<\/a> for expert-backed resources and a personalised journey.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"questionsparentsask\">Questions Parents Ask<\/h2>\n\n\n\n<p><strong>Can my baby\u2019s sex be determined in the first trimester?<\/strong>  <br> Everyone wants to know, right? In routine first trimester ultrasound, determining fetal sex reliably is not possible. Sometimes, people talk about \u201cnub theory\u201d (the angle in early scans)\u2014but scientifically, it\u2019s not conclusive until the <a href=\"https:\/\/heloa.app\/en\/blog\/pregnancy\/health\/second-trimester-ultrasound-essentials\">anatomy scan<\/a>, usually around 18\u201320 weeks. However, if knowing early is extremely important to you, <strong>non-invasive prenatal testing (NIPT)<\/strong>, available from 9\u201310 weeks onwards, can typically identify the baby\u2019s sex using DNA in the mother\u2019s blood. Discuss this with your doctor to decide the best approach for your family.<\/p>\n\n\n\n<p><strong>When and how will I get my scan and screening results?<\/strong>  <br> Usually, some of the findings like location, heartbeat, and dating are shared in real-time during the scan. A formal report along with the images might reach you via patient portal or email within a few days. For blood-based screening (including NT and <strong>first trimester <a href=\"https:\/\/heloa.app\/en\/blog\/pregnancy-en\/health-pregnancy\/first-trimester-ultrasound-2\">combined screening<\/a><\/strong>), results are typically available a few days after your sample is processed. <strong>NIPT<\/strong> reports may take between 7\u201314 days. Diagnostic test results\u2014for those who go ahead with amniocentesis or CVS\u2014might arrive within 1\u20132 weeks. If any risk is noted, clear counseling and follow-up appointments are set up, so you are supported at every step.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/heloa.app\/wp-content\/uploads\/2025\/06\/echographie-du-1er-trimestre-hailey-moeller-anLuSGoJ3QE-unsplash.jpg\" alt=\"\"><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Further reading :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK573070\/\" target=\"_blank\" rel=\"noopener\">Sonography 1st Trimester Assessment, Protocols, \u2026 &#8211; NCBI<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/utswmed.org\/medblog\/patience-key-understanding-timing-early-ultrasounds\/\" target=\"_blank\" rel=\"noopener\">Understanding the timing of early ultrasounds \u2026<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A clear, expert-backed guide to the first trimester ultrasound \u2014 when to have it, what to expect, test accuracy and screening options. 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