Fluid leaking??

This is my second pregnancy, so I do know a little about it but this didn’t happen to me during my first. I’ve been having a lot of discharge, which I know is normal, but the last few times I’ve gotten up from sitting, I felt something leaking. When I went to go pee I noticed my underwear are pretty wet. Not so much like water breaking, but enough that I needed to change my underwear in order to feel comfortable. I’m just a little worried since I’m only 21 weeks. This is how my water broke with my first pregnancy though, it leaked just a little throughout the day for 2 days... so I’m getting nervous but I don’t want to make a big deal of nothing