Finding out you’re pregnant is an exciting time, but it can also come with a lot of questions—especially when it comes to your baby’s health. From routine check-ups to specialist tests, there are many ways your healthcare team can help you understand how your baby is developing. One of those options is a Non-Invasive Prenatal Test, or NIPT for short. If you’ve been offered or are considering this test, you might be wondering: how long does it actually take to get the results?
Waiting for any kind of test result during pregnancy can feel like a lifetime, especially when it involves your baby’s health. Whether you’re anxious, curious, or just want to be prepared, understanding what the process involves—and how long it usually takes—can help you feel more at ease.
The NIPT Chromosome Test is a screening test that looks at your baby’s DNA through a simple blood sample from the mother. It helps check for common chromosomal conditions like Down’s syndrome (Trisomy 21), Edwards’ syndrome (Trisomy 18), and Patau’s syndrome (Trisomy 13). Unlike invasive tests such as amniocentesis, it carries no risk to your baby.
What Exactly Is NIPT?
Before we get into the timeframe, let’s briefly go over what NIPT is and why people choose it.
NIPT stands for Non-Invasive Prenatal Testing. It involves a blood sample taken from the pregnant person, usually from the arm, in the early stages of pregnancy—often from around 10 weeks onwards. This blood contains fragments of the baby’s DNA (called cell-free DNA), which the test analyses to look for signs of chromosomal conditions.
It’s a screening test, not a diagnostic one. That means it doesn’t give a definite “yes” or “no” answer, but instead tells you the likelihood or risk of certain conditions being present. If the test shows a higher chance of a condition, further testing (such as CVS or amniocentesis) may be offered to confirm the result.
Why Might Someone Choose NIPT?
There are many reasons why expectant parents opt for NIPT. Some do it for peace of mind, others because their NHS combined screening test (offered around 11–14 weeks) shows a higher chance of a chromosomal condition. It’s also common among older parents, have had previous complications or simply want more information.
Private clinics often offer NIPT as part of early pregnancy packages, sometimes combined with early scans or consultations. While it’s increasingly available on the NHS for certain groups, many people still choose to pay privately for quicker results or extra reassurance.
So, How Long Do NIPT Results Take?
This is one of the most frequently asked questions—and understandably so. Once the blood has been taken, most parents are eager to know how quickly they’ll hear back.
The average turnaround time for NIPT results is 7 to 10 calendar days, though some clinics or providers may give results within 5 working days.
However, the actual timing can depend on a few different factors:
1. Which Lab Processes the Test
Some clinics send the blood sample to local UK labs, while others ship it overseas. If the lab is in the UK, results often arrive faster—sometimes in under a week. If the sample goes to a lab abroad (often in the US or Europe), it may take a little longer due to transport and customs.
2. Which Day is the sample taken
If your blood sample is taken earlier in the week—say, on a Monday or Tuesday—it’s more likely to be processed quickly. Samples taken later in the week might face weekend delays, depending on the courier and lab opening hours.
3. How Easily the Lab Can Analyse the Sample
In some cases, the lab might not find enough of the baby’s DNA in the blood sample to get a clear result. This is known as a low “fetal fraction.” If this happens, they might ask for a repeat blood test, which could delay the process by several more days.
4. Public vs Private Testing
If you’re getting your NIPT done through the NHS, the wait may be slightly longer, depending on demand and available resources. Private clinics often have faster turnaround times as they may work with dedicated labs and couriers.
How Will I Get My Results?
Once your results are ready, your clinic or healthcare provider will usually contact you directly. How you receive them can vary:
- Phone call – Especially if the result shows a higher chance of a condition, you may be contacted directly by phone.
- Email or secure portal – Some clinics provide results through secure, password-protected systems.
- In-person consultation – In some cases, especially if you’ve had NIPT alongside a private scan, the clinic may book a follow-up appointment to go through the results with you.
If your result shows a low chance of a chromosomal condition, most people feel relieved and can continue with their pregnancy feeling more reassured. If the result shows a higher chance, your midwife or doctor will talk you through the next steps, which could involve further diagnostic tests and genetic counselling.
How Accurate Are NIPT Results?
NIPT is known for its high accuracy—especially for Down’s syndrome—with a detection rate of over 99%. That said, it’s not perfect. As a screening test, there’s still a small chance of false positives (saying there’s a higher chance when there isn’t) and false negatives (saying there’s a low chance when there is).
This is why, even with a higher chance result, you’ll always be offered further diagnostic tests before any decisions are made.
Waiting for Results: How to Cope
The wait for test results, even for a few days, can feel long—especially when it comes to something as important as your baby’s health. Here are a few things that might help during this time:
- Talk to someone – Whether it’s your partner, a friend, or a midwife, sharing your thoughts can help ease anxiety.
- Stay busy – Distraction can work wonders. Try reading, getting outside for a walk, or watching a favourite show.
- Avoid Googling too much – It’s tempting, but online forums or stories may increase stress. Stick to trusted sources or speak to your healthcare provider if you have questions.
- Focus on what you do know – Remind yourself that NIPT is a screening tool, and most results come back showing a low chance of conditions.
What Happens Next?
Once you receive your NIPT results, your next steps will depend on what the test shows:
- Low chance – You can continue with your pregnancy as usual, though you’ll still be offered the routine 20-week scan and other standard antenatal care.
- Higher chance – You’ll be referred for further counselling and offered diagnostic tests like CVS (chorionic villus sampling) or amniocentesis to confirm the result. These tests are more invasive but provide definitive answers.
Whatever the outcome, support is available at every step—from your midwife, your GP, or a specialist team.
Final Thoughts
The NIPT test is a powerful tool that gives parents-to-be more information about their baby’s health early in pregnancy. While waiting for results can be nerve-wracking, most people receive them in about a week to ten days, and the majority come back showing a low chance of any conditions.
If you’re considering NIPT or have already had your blood taken, knowing what to expect and how long the process typically takes can make things a little easier. Remember, no question is too small—so if you’re ever unsure, don’t hesitate to reach out to your healthcare provider.
You’re not alone on this journey, and whatever your test results show, there’s support and guidance available to help you make the best decisions for you and your baby.
