Water breaking or discharge?

Probably about 2 times a hour I get a huge gush of liquids that fill up my underwear and make it looked like I peed in my pants (not enough to run down my leg but make a noticeable quarter size dot in my jeans and fill up the bottom of my undies. It doesn’t feel like I peed, and it is a milky discharge but also watery??? I really thought I was losing my mind and I was just peeing but I took a mirror and watched when it happened and it definitely wasn’t pee. Has this happened to anyone? What is happening.. I’m 24 weeks and have a appt tom. This started Saturday!