Hmm. I would give it another hour as you said.

When i was preg with Charlie i had soemthing similar to this. Although initially the first sign of it was a small gush of liquid, then just trickled slowly for a while. I remember it didn't have a smell either and was clear. I ended up going to the hospital and by then it had stopped so they really couldn't say what it was but suggested it was a hind water leak, which can seal back up.

If you are still confused though, just call the hospital. They get calls like this all the time and since you are so close they wouldn't mind.