fFN (Fetal Fibronectin) Test

Fetal Fibronectin: Know what to expect

Fetal fibronectin (also known as fFN) is a "glue-like" protein that bonds your developing baby to your uterus. fFN can often be detected before other symptoms of preterm labor, such as contractions and changes in cervical length. It can be detected with a safe, reliable, non-invasive test (similar to a Pap test) that measures the presence of fFN. With this simple test, your doctor can tell if your body may be getting ready for delivery, even before you feel any of the symptoms. Want to learn more about the test?

Who's at Risk?

Should you talk to your healthcare provider about preterm birth or fetal fibronectin?

I have had a previous preterm birth.

  • Yes
  • No
How many preterm births?

I am pregnant with twins, triplets, or more.

  • Yes
  • No

I have been told that I have certain uterine or cervical abnormalties.

  • Yes
  • No
Which uterine or cervical abnormalities?

I have contractions (your abdomen tightens like a fist).

  • Yes
  • No
How frequent are your contractions?
minutes

I have a change in vaginal discharge (leaking fluid or bleeding from the vagina).

  • Yes
  • No
Is the discharge clear?
  • Yes
  • No

I have pelvic pressure (the feeling that your baby is pushing downward).

  • Yes
  • No
How long does the pressure last?
minutes

I have low, dull backache.

  • Yes
  • No
How long have you had back pain?
hours

I have cramps that feel like my period.

  • Yes
  • No
How frequent are your cramps?
minutes

I have abdominal cramps, with or without diarrhea.

  • Yes
  • No

If you've checked Yes for any of the above, you should talk with your doctor about your risk for preterm labor.

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