Hi, there~
All will be fine. I was 32 weeks pregnant with twins when I started having contractions. I was considered high risk because I was 35yo and it was twins. I was put on modified bed rest, given the steroid shots and a prescription for Terbutaline pills to stop the contractions, and told to drink lots of water. This was a very scary time for me. My contractions seemed to come back at the end of the day, just about the time the doctor's office was closing, and I was always worrying about whether I should or shouldn't go to the hospital. If I drank too much water, a full bladder would stimulate contractions. If I didn't drink enough water, I would get contractions. So here's what I learned the hard way and wish someone would have told me so I didn't have to worry so much...
1. Drink about a gallon of water a day, but space it out throughout the day.
2. Stay off your feet as much as possible, especially towards the end of the day (5pm on). Have everything you'll need for the day with you in the room so you don't have to get up much. Consider crawling around the house, even to the bathroom.
The babies are considered full-term at 36 weeks so that's when they told me to stop taking the Terbutaline. I went into labor the next day and delivered 2 healthy boys. One weighed 7 lbs. and the other weighed 4lb 13oz. We stayed in the hospital for 4 days only because I'd had a C-section. (The C-section was due to the babies' positions and not because of pre-term labor.) Unlike many babies that are born early, they never went to the NICU and we all went home at the regular time. We've never had any developmental issues other than one has a speech impediment but I doubt that has anything to do with his birth.
Best wishes!