Urine or amniotic fluid?

I'm 28 almost 29 weeks pregnant and I'm not sure if it's discharge, urine or fluid.

I wear a panty liner and everytime I go to the bathroom I have to change it because it's wet. Not like a drop or two, like the whole thing is wet. Not soaking like I peed myself but noticeably wet which I why I started wearing one anyways. It's been happening the past two or three days.

I'm a FTM and I just turned 20 so I feel so anxious about calling my office because I feel like they push me aside to just being over parinod. (I've called about a UTI when it turns out I did have one, really bad too).

Help?

What should I be looking for?

What's normal?