How Many Ultrasounds Are Done During a Pregnancy?

How Many Ultrasounds Are Done During a Pregnancy? Many low-risk pregnancies have one or two routine ultrasounds, but the number changes when dating, anatomy, growth, placenta, bleeding, or medical concerns need closer follow-up.

Ultrasound count is not a scorecard. Fewer scans can be normal in a low-risk pregnancy, and more scans can be appropriate in a higher-risk pregnancy.

The Common Pattern

A common low-risk pattern is an early dating scan if needed and a detailed anatomy scan around the middle of pregnancy. Some practices do not do an early scan unless timing or symptoms call for it.

ACOG's ultrasound exam FAQ says a standard ultrasound checks fetal physical development, screens for major congenital anomalies, and estimates gestational age: ACOG ultrasound exams.

Your clinic's routine may differ based on country, insurer, provider, and medical history.

Early Ultrasound

An early ultrasound may confirm pregnancy location, heartbeat when far enough along, number of embryos, and gestational age. It may be ordered after uncertain dates, bleeding, pain, fertility treatment, or prior pregnancy loss.

If early symptoms are confusing, signs of pregnancy in the first week can help with timing language, but ultrasound decisions belong with your care team.

Very early scans can be inconclusive. Sometimes the safest answer is repeat hCG testing or another scan later rather than assuming the worst.

The Anatomy Scan

The anatomy scan is often the longest routine ultrasound. It looks at fetal structures, placenta, amniotic fluid, growth, cervix in some cases, and sometimes fetal sex if visible and requested.

Mayo Clinic says fetal ultrasound can be used to check the heart and that a detailed heart image is usually taken during an ultrasound between weeks 18 and 22: Mayo Clinic fetal ultrasound.

If you plan to share fetal sex news, gender announcement ideas can be useful, but remember ultrasound estimates biological sex, not future gender identity.

Third-Trimester Ultrasounds

A third-trimester ultrasound is not always routine for low-risk pregnancies. It may be ordered for growth concerns, high blood pressure, diabetes, low fluid, placenta location, breech position, twins, or reduced fetal movement.

Some people need serial growth scans every few weeks. Others need none after the anatomy scan.

If needing more scans is making you anxious, depression during pregnancy may be helpful alongside direct questions for your clinician.

High-Risk Pregnancies Usually Need More

Twins, fetal growth restriction, placenta previa, diabetes, hypertension, prior complications, fetal anomalies, or maternal medical conditions can lead to more frequent ultrasound monitoring.

More scans do not automatically mean something is wrong. Sometimes they are used to watch growth, fluid, position, or blood flow so decisions are made with better information.

Ask the purpose of each scan. The answer should be specific: growth, anatomy, fluid, cervix, placenta, position, Doppler, or procedure guidance.

Safety And Medical Use

ACOG's diagnostic imaging guidance says ultrasonography is not associated with risk and is an imaging technique of choice for pregnant patients when clinically needed: ACOG diagnostic imaging in pregnancy.

That does not mean unlimited keepsake scanning is a good idea. Medical ultrasound should answer a clinical question and be performed by trained professionals.

Use medical scans for medical reasons, not only for entertainment. If you want extra pictures, ask your clinician how to balance keepsake wishes with prudent use.

Why Counts Differ By Practice

One clinic may do a dating scan for nearly everyone; another may reserve it for uncertain dates. One insurer may cover a follow-up only for medical indication; another system may schedule differently.

Ask your care team what is routine in their practice and what would add another scan. That prevents surprise when a friend has a different number.

If body image or anxiety around scans is hard, feeling attractive during pregnancy may support the emotional side.

Questions To Ask At The Appointment

Ask what the scan is for, how long it may take, whether it is transvaginal or abdominal, what can and cannot be seen, and when results will be reviewed.

Ask if pictures are allowed and what happens if the baby is positioned poorly. Sometimes a follow-up is needed because the view was limited, not because something is wrong.

If your support person will attend, early labor support is a later-stage guide, but the same calm support skills help at appointments.

What A Follow-Up Scan Means

A follow-up scan can mean many things: the baby was facing the wrong way, a structure was not seen clearly, dates need checking, or a medical issue needs closer review.

Do not assume a callback means bad news. Ask what was incomplete or concerning and what the follow-up is meant to answer.

If the waiting period is hard, ask when results will be available and who will explain them.

Transvaginal Versus Abdominal Ultrasound

Early in pregnancy, a transvaginal ultrasound may give a clearer view than an abdominal scan. Later, most routine scans are abdominal.

You can ask why a transvaginal scan is recommended, who will perform it, and whether you can stop if you feel pain or distress.

Consent still matters during routine care. A scan being common does not mean your questions are inconvenient.

Cost And Coverage

Insurance may cover medically indicated ultrasounds differently from elective keepsake scans. Ask the clinic for billing codes and expected out-of-pocket cost if cost matters.

If a scan is ordered because of a concern, ask whether preauthorization is needed. Billing surprises can add stress to an already emotional appointment.

Keep copies of reports in your prenatal records. They can help if you transfer care.

When No Ultrasound Is Ordered Early

Some people feel uneasy if friends had early scans and they did not. No early scan can be normal when dates are clear and there are no symptoms or risk factors.

Ask what signs should trigger a call before the anatomy scan. That gives you a plan instead of a vague wait.

If anxiety is high, say that directly. The care team may not add a scan for reassurance alone, but they can explain the reasoning.

What Results Can And Cannot Tell You

An ultrasound can show many structural details, but it cannot rule out every condition. Some findings appear later, and some conditions are not visible on ultrasound.

A normal scan is reassuring, not a guarantee. An abnormal or unclear scan also needs careful explanation before assumptions are made.

Ask whether any finding needs follow-up, genetic counseling, blood testing, or a specialist scan.

If The View Is Limited

Sometimes the sonographer cannot see everything because of fetal position, gestational age, body habitus, scar tissue, fibroids, low fluid, or movement. That can lead to a repeat scan.

A limited view is not the same as a diagnosis. Ask which structure was not seen clearly, when they want to repeat the scan, and whether a specialist review is needed.

If you leave with only a vague message, call the office and ask for plain wording. Waiting is easier when you know the actual reason for the follow-up.

How Results Are Shared

Some sonographers can describe what they are measuring, but a clinician or radiologist may be the person who formally reviews the images. Office policies vary.

Ask when you will receive results and who will call if something needs attention. Also ask where the written report will appear in the patient portal.

If a scan is emotionally difficult, bring a support person when allowed, write questions before the appointment, and ask for a pause if you need a moment.

If You Want Fewer Scans

You can ask why each ultrasound is recommended and what decision depends on it. That question keeps the conversation practical instead of turning it into a debate about numbers.

For a low-risk pregnancy, your clinician may explain that no extra scan is needed. For a higher-risk pregnancy, the scan schedule may be part of monitoring growth, fluid, or placenta concerns.

If you decline an ultrasound, ask what information may be missed and what alternative monitoring, if any, is reasonable.

Frequently Asked Questions

How many ultrasounds are normal?

Many low-risk pregnancies have one or two, but normal varies by practice and medical need.

Is the 20-week scan required?

It is commonly offered because it checks anatomy and growth, but discuss your options with your clinician.

Why would I need more scans?

Growth, placenta, fluid, position, twins, medical conditions, or unclear views can all lead to more scans.

Are keepsake ultrasounds recommended?

Medical groups generally discourage ultrasound done only for entertainment or keepsake images.

Can too few ultrasounds be okay?

Yes, if the pregnancy is low risk and your care team has no medical reason for more imaging.

This article is for general information only and isn't a substitute for medical advice. Talk to a clinician who knows your full history before making changes.

Cashie Evans

Covers parenting and practical household topics with clear steps, safety notes and links to current guidance.