Private Growth & Wellbeing Pregnancy Scan in London

At London Private Ultrasound, a private growth and wellbeing scan is £199, all-inclusive, covering the ultrasound, growth measurements, wellbeing review, findings explained on the day and a same-day written report.

Across London, private growth scans typically range from around £150 to £280, depending on whether a written report, images and a specialist review are included, and whether the scan is performed by a sonographer or a fetal medicine consultant.

On the NHS, a third-trimester growth scan is not routinely offered to every low-risk pregnancy. It’s usually arranged by your midwife or obstetrician if there’s a specific reason, such as your bump measuring small or large for dates (symphysis-fundal height), reduced fetal movements, a medical condition like diabetes or high blood pressure, a previous growth-restricted baby, or a twin pregnancy.

If you don’t meet local criteria for a routine NHS growth scan but would like one for reassurance, you can book privately without a GP or midwife referral.

Yes. Growth scans are commonly performed anywhere from 24 to 37 weeks and beyond, and a scan at 37 weeks is a normal and common part of both NHS surveillance (for pregnancies with a clinical reason) and private reassurance bookings.

At this stage the scan usually focuses on estimated weight, growth pattern, amniotic fluid, placental position and, often, your baby’s presentation (head-down, breech or transverse).

When comparing clinics, it’s worth checking who performs and reports the scan, whether a written report and images are included in the price, how quickly you receive results, and whether the clinic is CQC-registered.

London Private Ultrasound is CQC-registered, rated 4.8 out of 5 on Google across more than 1,200 reviews, and includes the scan, findings explained on the day and a same-day written report in the £199 price, with two Central London and St Albans clinics open seven days a week.

The terms are closely related and often used together, and at London Private Ultrasound both are covered in the same £199 appointment. A growth scan focuses on measuring your baby to estimate fetal weight and plot growth on a percentile chart.

A wellbeing scan takes a broader look, also reviewing movement, heartbeat, amniotic fluid, placental position and, when indicated, Doppler blood flow, alongside those same growth measurements.

The sonographer measures the fetal head circumference, abdominal circumference and femur length. These three measurements are combined to calculate an estimated fetal weight and a growth percentile for your baby’s gestational age.

Femur length is the measured length of your baby’s thigh bone, one of the three core measurements (alongside head and abdominal circumference) used to estimate fetal weight and assess growth.

On its own, a femur length reading isn’t diagnostic; it’s only meaningful when plotted against your baby’s gestational age on a growth chart, alongside the other measurements.

Yes, though twin pregnancies are usually monitored more closely and more frequently than singleton pregnancies, particularly if the twins share a placenta.

Please mention that you’re expecting twins when booking so the clinic can confirm the appropriate appointment length and approach for both babies.

Fetal position (presentation) is often noted as part of a later growth and wellbeing scan, though a dedicated presentation scan closer to 36–40 weeks is the more focused option if position is your main concern, for example to check whether your baby is head-down, breech or transverse ahead of birth.

Fetal growth restriction (FGR) describes a baby who isn’t growing as expected for their gestational age, often defined using an estimated fetal weight or abdominal circumference below the 10th centile, alongside other markers such as Doppler blood flow.

A growth and wellbeing scan is designed to pick up the pattern that can indicate FGR, by measuring growth against expected ranges and checking placental and umbilical blood flow when indicated. If a concern is identified, we explain it clearly and advise on the right next step with your NHS maternity team.

Umbilical artery Doppler measures blood flow between the placenta and your baby through the umbilical cord. It isn’t part of every growth scan, but is added when clinically indicated — for example if growth appears to be slowing, if fluid or placental findings raise a question, or if there’s a relevant risk factor such as high blood pressure in pregnancy.

Ultrasound-estimated fetal weight is a useful clinical tool but is an estimate, not an exact figure. Accuracy is generally within about 10–15% of actual birth weight, and can vary with gestational age, fetal position, amniotic fluid and image quality.

It’s most useful for tracking the pattern of growth over time rather than as a single precise number.

No. You can book directly online, by phone or by WhatsApp without a referral. Bring your maternity notes or hand-held records and any previous growth scan reports if you have them, as they give useful context.

Yes. Findings are explained verbally before you leave, and a written report with representative images normally follows the same day, which you can share with your midwife, GP or obstetrician.

No. This private scan is designed to complement, not replace, your NHS maternity care, routine midwife appointments, hospital growth scans or any specialist monitoring you’ve been advised to have. Please continue attending your NHS appointments as scheduled.

If the sonographer identifies a concern, the findings will be explained clearly and documented in your report. You may be advised to contact your NHS maternity unit, midwife, GP or consultant promptly for further review.

Yes. Growth is best assessed as a pattern over time, so a repeat scan is often the most useful way to confirm whether a measurement outside the expected range is part of a trend or a one-off reading. We’ll advise on a sensible interval if a follow-up scan would help.

London Private Ultrasound has two clinics. Central London is at 27 Welbeck Street, W1G 8EN, in the Harley Street Medical District, a short walk from Bond Street, Oxford Circus and Marylebone. St Albans is at 54–56 Victoria Street, AL1 3HZ, serving Hertfordshire and North London.

Both offer the £199 growth and wellbeing scan, seven days a week, 9am to 7pm.

Your growth and wellbeing scan is performed by experienced consultant sonographers, with clinical governance and patient-information sign-off from our medical director.