37 wks Contracting at 4cm but not dilating

Ju

I’ve been at 4 cm as of yesterday and today I was having frequent contractions. I went to the hospital but was sent home after being monitored for an hour. They said I was definitely contracting but not dilating. How long could I stay at a 4? I’m 37 weeks and I’m ready to have my baby. 🤷🏻‍♀️