Dilation , effacment, station

Went to l.d tonight because I thought my water broke I have been having extremely bad lower back pains since the afternoon decided to lay down pain didn't go away sat up and got wet. Went to the hospital I wasn't contracting but I am dialated 1 with wiggle room thick and station 3.. ob wants to see me tomorrow to do some kind of test .. can anyone who know what that means please inform me I'm concerned and confused