Preterm labor

Went to L&D due to contractions and when I got there I was having “active labor” contractions that where 2 minutes apart and even after fluids they didn’t stop but they calmed down and I’m a centimeter dilated and they said I definitely wasn’t going to make it much longer but as long as he stays in for 4 more days I won’t have to go to a different hospital for NICU. I’m 35 weeks and 3 days and Thai is my third baby! My first two where before 39 weeks as well! They discharged me and told me to come back if they get stronger or my water breaks 😬