went in to l&d around 9pm last night...was only dialated 1cm. just woke up at around 4:45 am…

went in to l&d around 9pm last night...was only dialated 1cm. just woke up at around 4:45 am thinking I was peeing on myself. I put my hand down there and it wasn't warm like pee usually is, and it was...its kinda hard to explain...kinda slimy but not a lot. so is it possible to lose a mucus plug when your water breaks? ps- its been past 10 minutes and my undies still don't smell like pee!