nuhahyearlyLaunch pricing - Get £50 off!nuhahyearlyYour baby's heart starts beating around week 6. Here's when you can hear it, what to expect at scans, and what those first beats mean.
Your baby's heart starts beating around week 5-6, but you can first hear it at the dating scan between weeks 11-14. According to Nuhah's pregnancy guide, a doppler may detect it from week 10-12 at midwife appointments.
One of the most anticipated moments in early pregnancy is hearing your baby's heartbeat for the first time. It's the moment that makes everything feel real. The first time you hear it, it hits you, there's a tiny life in there that you're desperate to meet. Here's what to expect, when it happens, and what those first beats actually mean.
Your baby's heart begins forming remarkably early. By around week 5 of pregnancy, a tiny heart tube starts making its first rhythmic contractions. By week 6, cardiac activity can usually be detected on a transvaginal ultrasound - though it's important to know that "hearing" the heartbeat at this stage means seeing it flickering on screen rather than hearing a sound through a speaker.
The earliest heart rate is typically around 100-120 beats per minute. This rises rapidly over the following weeks, reaching 150-170 BPM by week 8, before gradually settling to around 120-160 BPM for the remainder of pregnancy. For context, that's roughly twice as fast as your own resting heart rate.
Most parents in the UK first experience their baby's heartbeat at the dating scan, which typically takes place between weeks 11 and 14. This is an NHS ultrasound that confirms your due date, checks your baby's development, and offers screening for certain conditions.
During this scan, your sonographer will measure your baby's crown-rump length and check their heartbeat. Many parents describe this as the moment it all becomes real - seeing that tiny flutter on screen, sometimes for the very first time.
If you have an earlier scan (some women are offered one at 7-8 weeks), you might see cardiac activity then. At this stage, your baby is still very small, so the heartbeat appears as a gentle flickering.
From around 10-12 weeks, a midwife may be able to detect the heartbeat using a handheld Doppler device during your antenatal appointments. This produces the familiar "whooshing" sound that many parents recognise. However, it's worth knowing that it's completely normal for the heartbeat to be difficult to find at this early stage - it depends on baby's position, the position of your placenta, and your body type.
A note on home Dopplers: while commercially available, the NHS and the Royal College of Midwives advise against using them at home. They can provide false reassurance or unnecessary anxiety. If you're ever concerned about your baby's wellbeing, contact your midwife or maternity unit directly rather than relying on a home device.
Your baby's heart rate is a key indicator of healthy development. In the early weeks, the rate climbs rapidly as the heart matures. By the second trimester, it settles into a steady rhythm that your midwife will check at each appointment.
Here's roughly what to expect by week:
Week 6: 100-120 BPM (just getting started)
Week 8: 150-170 BPM (near its peak)
Week 10 onwards: 120-160 BPM (settling into its rhythm)
Third trimester: 110-160 BPM (with natural variation)
You might have heard that heart rate can predict your baby's sex - faster means a girl, slower means a boy. It's a lovely idea, but research hasn't found any reliable link. The heart rate varies naturally throughout the day based on your baby's activity level, just like yours does.
If you have an early scan and the heartbeat isn't detected, try not to panic. At 5-6 weeks, the embryo is incredibly small and cardiac activity may simply be too early to see. Your care team will usually recommend a follow-up scan a week or two later, and in most cases, everything is developing perfectly - it was just a little too early.
If your midwife has difficulty finding the heartbeat with a Doppler at a later appointment, the same applies. Baby's position, the amount of amniotic fluid, and the position of your placenta can all make detection tricky on any given day. Your midwife will know when further investigation is needed and will guide you through next steps.
Whether you see that first flicker on a screen at 7 weeks or hear the rhythmic whoosh at 12 weeks, your baby's heartbeat is one of pregnancy's most profound milestones. By the time they're born, that tiny heart will have beaten approximately 54 million times - and it all started with a flutter no bigger than a sesame seed.
A heartbeat is usually visible on ultrasound from week 6-7 and audible at the dating scan between weeks 11-14. Handheld dopplers used by midwives can typically detect it from around week 10-12.
On ultrasound it looks like a flickering movement. On a doppler, it sounds like a fast, rhythmic whooshing - typically 120-160 beats per minute, much faster than an adult heartbeat.
Yes. At 6 weeks, the embryo is very small and a heartbeat may not be detectable yet. A follow-up scan a week or two later usually shows it clearly. Your sonographer will advise you.
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