Fetal fibronectin test

Christine • Mama to a 6 year old girl, 1 year old boy, and pregnant with #3 due 2/3/20💕

I'm 34 weeks and I've been having pretty frequent contractions, especially while I'm at work or out running errands. My doc did a cervix check and a fetal fibronectin test today and I'm waiting for the results... has anyone else had this done before?