Amniotic fluid?

So much discharge that I'm nervous that i may be leaking fluid. I felt this way with both my first children and when I went into labor and delivery, nurses said no, though both times my water broke for real that night.  I'm nervous that somehow the process of checking for amniotic fluid causes the sac to actually break and therefore don't want to go in to get checked. I'm only 27 weeks. With my other two, I was 36 and 38, so no big deal. Anyone else in this position?