Hospital a couple nights ago

Went into the hospital for having what I thought was Braxton hicks for over 2 hours that were 3minutes apart. By the time I got to the hospital they were right on top eachother. Which wasn't good because if it continued it would effect baby because he wouldn't be able to "catch his breath," Recover in there. Son they had to give me a shot to slow my uterus down. After that I was sent home because I wasn't dilating more. Now it's kinda just a waiting game.