It is possible for it to be a slow leak, but then I am not a Midwife or Dr. Have you got a family Dr that you can go see, that you can talk to. Maybe you might have better luck. With my first baby, he was 2/5 when my water broke. I had to be induced to bring on the labor. The most important thing is that if anything worries you, that you see the hosp again. Another thing is to keep an eye on the baby's movements. All the best and hope you have an easy and safe labor.