6 Week Scan
Six weeks is the earliest stage at which a private reassurance scan tends to be informative. From our Gosforth clinic in Newcastle, we look for the gestational sac, yolk sac and, in most pregnancies, that first cardiac flicker that the NHS isn't yet scanning for.
Quick Answer
A 6 week scan answers three questions: is the pregnancy in the uterus, is the gestational sac developing alongside a yolk sac, and is there a heartbeat? In around 80–90% of viable pregnancies the cardiac flicker is detectable at this stage. The embryo itself measures roughly 4–5mm, too small for recognisable photos, but more than enough for that first reassuring image. Because the NHS doesn't routinely scan this early, six weeks is exclusively private territory, usually requested after a positive home test, a previous loss, or fertility treatment. At Numi Scan Gosforth the appointment is £89, runs 15–20 minutes, and includes printed and/or digital images and a sonographer report.
What's Happening at 6 Weeks
At 6 weeks, counted, by convention, from the first day of your last period, your baby is roughly sweet-pea sized, somewhere around 4 to 5 millimetres top-to-bottom. The biology happening inside that tiny frame is extraordinary. A heart that was a simple tube only days earlier has folded and now ticks at 100 to 130 beats a minute. The brain has begun dividing into its three primary regions. The neural tube, which will mature into spine and central nervous system, has closed. The limb buds, the very first hint of arms and legs, have made their appearance.
None of that, of course, is yet recognisable to the untrained eye. On screen, a 6-week embryo looks like a small bright bean tucked inside a darker fluid-filled sac. Your sonographer isn't looking for anatomy at this point so much as confirmation: pregnancy where it should be (not in a fallopian tube), sac size matching the dates you've been working from, and a steady flicker exactly where the heart should sit.
For families who've been through a previous loss, who conceived via IVF or IUI, or who are simply finding the wait until 12 weeks unbearable, that flicker is the moment the whole thing stops feeling abstract. Which is, in the end, the entire reason the 6-week scan exists.
Why a 6 Week Scan? Three Common Reasons
Following a previous miscarriage
When you've already lost a pregnancy, the stretch from positive test to NHS dating scan at 12 weeks can feel cruelly long. A six-week look in is an early checkpoint, and the numbers shift in your favour once a heartbeat is logged: miscarriage risk drops from roughly 1 in 4 across the general population to under 1 in 10 when a heartbeat is seen at six weeks. It isn't a guarantee, but for many of the families who walk into our clinic on Bakers Yard it's the first proper exhale of the pregnancy.
After IVF, IUI or assisted conception
Most fertility clinics discharge their patients after a confirmation scan somewhere around 7–9 weeks. Some parents prefer to scan a little earlier than that, at six weeks, as an extra layer of reassurance before the handover, or to pair with an early pregnancy reassurance scan at 7–8 weeks for crisper detail before NHS midwifery picks up your care.
After a strong positive: and a need to see for yourself
Sometimes there's no clinical reason at all. The test line is unmistakable, and the idea of waiting six more weeks to see anything on a screen feels intolerable. A 6-week scan is for parents who simply want the earliest credible glimpse of what's happening, a personal choice, and a perfectly reasonable one.
What We Actually See on Screen
The 6-week image bears very little resemblance to the recognisable scan photos parents share later at 12 or 20 weeks. There's no tiny human silhouette to spot just yet. Instead, your sonographer is checking for four specific markers that, when present together, indicate a healthy early pregnancy:
- Gestational sac: a dark fluid-filled bubble nestled inside the uterus, where baby is developing. Typically appears from 4.5–5 weeks.
- Yolk sac: a smaller bright ring sitting within the gestational sac, supplying the embryo until the placenta takes over the job. Visible from around 5.5 weeks.
- Fetal pole: a slight thickening at the edge of the yolk sac that will become the embryo proper. Showing from roughly 6 weeks.
- Heartbeat: at this stage you see pulsing motion within the fetal pole rather than hearing a sound. Generally appears between 6 and 7 weeks.
All four present plus measurements aligning with your dates equals a quietly reassuring scan. If everything else is tracking and only the heartbeat hasn't yet announced itself, our usual recommendation is a recheck inside 7–10 days. Babies wriggle, dates drift; nine times out of ten the next look brings the news the whole appointment was hoping for.
Scan Package for Week 6
Early Pregnancy Viability Scan
6–9 weeks 6 days
Intrauterine pregnancy confirmation, heartbeat where visible, early dating and single or multiple pregnancy check. Printed and/or digital images and a sonographer report included.
View package →NIPT Test
From 10 weeks: the next decision point
DNA-based blood screening for Down's, Edwards' and Patau syndromes, in three tiers (Standard / Advance / Absolute). Eligible from 10 weeks, only 4 weeks after your 6-week scan. Results in 3-5 working days.
View package →Book Your 6 Week Scan
Same-day or next-day slots are often available at our Gosforth clinic. CQC-regulated, experienced and registered sonographers, two years on Bakers Yard, a fast-growing wall of five-star Google reviews since 2025.
A 6 Week Scan: NHS vs Private
At six weeks the NHS has not usually started scanning. Unless you have bleeding, pain or a previous loss, there is no routine appointment this early — which is exactly the gap most parents come to us to fill.
| Aspect | NHS | Numi Scan Gosforth |
|---|---|---|
| Available at 6 weeks | Not routinely. An Early Pregnancy Assessment Unit referral needs bleeding, pain or a relevant history | ✓Yes, from 6 weeks, self-referral |
| Typical wait | Days to weeks via GP or EPAU, assuming you qualify | ✓24–48 hours, often the same day |
| What is checked | Clinical assessment where referred | ✓Pregnancy located in the uterus, heartbeat, number of babies, early dating |
| Appointment length | Around 15 minutes, clinical in tone | ✓15 minutes, unhurried, with time to talk |
| Guests | Usually one partner | ✓Mum plus up to 9 guests |
| Images to take home | Rarely | ✓4 A6 prints and every digital image by email |
| Cost | Free | ✓£89 |
If you are bleeding or in pain, ring your GP or the NHS Early Pregnancy Assessment Unit at the RVI first. A reassurance scan is not a substitute for urgent clinical care.
Frequently Asked Questions
Usually, yes. On transabdominal scanning, that first cardiac flicker tends to show up somewhere between 6+0 and 7+0, and in roughly four out of five viable pregnancies dated at exactly 6 weeks, we can pick it up on the day. If your sonographer can see the gestational sac and the yolk sac but the heartbeat isn't quite there yet, that's almost always a dating issue rather than a problem. We'll bring you back for a free follow-up scan inside two weeks (Mon–Fri) so the next look has the breathing room it needs.
Not always. At six weeks the embryo measures around 4–5mm, and with a comfortably full bladder a tummy-surface scan often resolves enough to confirm the heartbeat. If the angle isn't generous, uterus tilted backwards, more body tissue to image through, we may suggest switching to a transvaginal scan, which uses a slimline probe for a closer view. It's quick, dignified, and always your call. Plenty of mums-to-be from Heaton, Jesmond and the wider Newcastle suburbs ask us to start transabdominal and only swap if the picture isn't clear.
Depends on what you're hoping to come away with. At six weeks we can confirm the pregnancy is sitting in the uterus, identify the gestational and yolk sacs, and in most cases catch a heartbeat. What we can't realistically offer at this stage is a recognisable shape on the photos, precise crown-rump dating, or absolute reassurance that miscarriage risk has passed. If you'd rather wait for a slightly clearer image, our Early Pregnancy Viability Scan from 7–8 weeks tends to deliver a more conclusive viability check, or the 12-week milestone sits at the end of the first trimester. The team at our Gosforth clinic will talk you through which window suits your situation when you call.
Because 11–14 weeks is the most efficient single appointment to date the pregnancy, screen for combined-test markers, check for twins and review major anatomy in one go. The NHS reserves earlier scans for cases with a clinical reason, bleeding, sharp pain, history of ectopic pregnancy or recurrent loss. If none of those apply but you'd like a look anyway, the private route at our established Newcastle clinic is self-referral; no GP letter needed, no waiting in a queue behind clinical priorities.
Our Early Pregnancy Viability Scan is £89 across the 6–9 week window, and is suited to 6-week appointments, with the proviso that the heartbeat is at the earlier end of when it's reliably visible. That fee covers the appointment itself, printed and/or digital images and a sonographer report. The UK private market for an early viability scan generally sits between £75 and £120, so we land at the kinder end. For wider context across other clinics, our UK private ultrasound cost guide goes deeper.
It's a difficult moment, but in the majority of cases the answer is simply dates. A pregnancy you've been told is six weeks may actually be 5+3 or 5+4, and the heart hasn't quite started its rhythm or is below detection threshold. Our standard approach is a complimentary recheck seven to ten days later, by which time development should clearly have moved on. In the smaller number of cases where no heartbeat develops, we explain what we're seeing carefully and unhurriedly, send you a detailed written report, and refer you back to your NHS Early Pregnancy Assessment Unit for ongoing care. Nobody is ever sent home to interpret findings alone.
Yes please. Drink two large glasses of water roughly an hour before you arrive at NE3 1XD and try not to empty your bladder before the scan. The pressure lifts the uterus into a more co-operative position and is often the single difference between a crisp early image and a frustrating one. If we do switch to transvaginal during the appointment, you'll be asked to empty first; we'll guide you through it on the day, no need to worry.