At What Stage in Pregnancy Should You Get a Non-Stress Test?

Pregnancy comes with many routine screenings and check-ins designed to ensure both you and your baby are healthy. One test you may hear about later in pregnancy is the non-stress test (NST). While the name can sound intimidating, the test itself is simple, painless, and provides valuable insight into your baby’s well-being. Understanding when a non-stress test is recommended and why can help you feel more confident and prepared as you move through the final stages of pregnancy.

What Is a Non-Stress Test?

 

A non-stress test is a common prenatal screening used to monitor your baby’s heart rate in response to their movements. During the test, two small sensors are placed on your abdomen: one measures the baby’s heart rate, and the other tracks uterine activity. As your baby moves, healthcare providers look for healthy increases in heart rate, which are reassuring signs that your baby is receiving enough oxygen and is doing well.

When Is a Non-Stress Test Typically Performed?

Most non-stress tests are performed during the third trimester, usually starting around 32 weeks of pregnancy. This is when your baby’s nervous system is developed enough for heart rate changes to reliably respond to movement.

In some cases, an NST may be recommended as early as 28 weeks, especially if your provider wants closer monitoring due to specific risk factors or concerns.

What to Expect During the Test

 

A non-stress test usually takes 20 to 40 minutes and is performed in the office. You’ll be seated comfortably or lying slightly reclined. You may be given a button to press whenever you feel your baby move. If your baby is asleep, your provider may gently stimulate movement to complete the test. Results are often available immediately, allowing your care team to determine whether everything looks reassuring or if additional testing is needed.

Are Non-Stress Tests Safe?

Yes. Non-stress tests are considered very safe for both mother and baby. They are non-invasive, require no medication, and carry no known risks. The test simply gathers information to help guide your prenatal care and ensure your baby’s continued health.

Take the Next Step with Partners in Obstetrics & Women’s Health

 

Non-stress tests are typically performed in the third trimester, most often starting around 32 weeks of pregnancy, but timing can vary based on your individual needs. These tests provide valuable reassurance when closer monitoring is needed. If your provider recommends an NST, it’s because they are focused on keeping both you and your baby as healthy as possible.

If you have questions about non-stress testing or want to know whether it may be part of your prenatal care plan, Partners in Obstetrics & Women’s Health is here to help. Visit our office in New Lenox, Illinois, or call (815) 240-0554 to book an appointment today.