Amniotic fluid or watery discharge?

Ni

So I have been having watery discharge here and there. I wear panty liners most of the day but now I’m getting worried that it could be amniotic fluid? Can someone explain the difference between the two or how I can determine the difference? What I have is pretty watery and sometimes either clear or a slight yellow color. I’m very unsure and don’t know if I should bring this up to my doctor or not.