Pregnancy Breast Leakage (Lol)

Liz
I'll be 27 weeks pregnant in 2 days and I noticed both of my breasts started leaking a small amount of clear fluid. I had a small wet patch (about a dime size) in the left side of my bra when I took it off and an even larger amount of it had dried on my right nipple. What is it and when did everyone else start leaking? It's not colostrum because it's clear.