Leaking...something!

I’m getting so frustrated. I’ve had discharge this whole pregnancy. Lately I’ve had an increase in ‘leaking” and sometimes I’m worried it’s amniotic fluid, other times I think it’s just urine. I can tell when it’s discharge because it’s thicker consistency and white. But when I leak it’s clear smaller spots. I put a pad on last night to sleep to try and catch it and see if there’s any color, etc. went all night and the pad is dry of course.

I have an appointment in the next few days with my OB so I guess I’ll be asking her. I’m almost 21 weeks.