"
Fetal fibronectin "leaks" into the
vagina if a preterm delivery is likely to occur and can be measured in a
diagnostic test.
[1]
It is an excellent biological marker of premature (preterm) delivery; a delivery before 37 weeks of
gestation.
When the fFN test is considered positive, delivery is likely to occur soon. When the fFN test is negative, it means that there is little if any danger of
preterm labour for 7-10 days. The test is easily performed. A specimen is collected from the patient using a
vaginal swab. The swab is placed in a transport tube and sent to the lab for testing. The lab can easily produce a test result in less than one hour.
A
systematic review of the
medical literature found that fetal fibronectin is a good predictor of spontaneous preterm birth before
cervical dilation.
[2] The test may be run on patients between 22 and 35 weeks gestation.
A negative fetal fibronectin test gives a more than 95% likelihood of remaining undelivered for the next 2 weeks. On the other hand, a positive fetal fibronectin test only only means a higher risk of preterm delivery (61% of delivery before 34 weeks)
[3]. So, the fetal fibronectin test can't tell you for sure that you are in labor, but it can tell you that you're not."
from wiki
I didn;t get any test results back or anything, so I am guessing my midwife swabbed me for something else.