Amniotic fluid leaking for a few weeks?

I honestly don’t even know if this is possible but I don’t know what else it would be.

Okay so everyday for the last couple weeks I’ll wake up thinking I’ve peed myself but it’s not pee bc if I relax my bladder I don’t pee more and i feel the liquid more towards my butt. Nor does it smell like pee. It doesn’t soak to my sheets but it will be on my panties just a tad. But mostly it’s just on my vagina. And it goes on at work too. I had an ultrasound a week ago and my amniotic fluid was fine but I’m just wondering what is this stuff coming out of me. I see my doctor Monday but do I need to call and see him sooner? I’m 31w3d.