I don't leak as such but if I squeeze my nipples I get some out. With DD1 I could do this by 20 odd weeks, with DD2 nothing at all, and this pregnancy I could do it from around 32wks. Just a couple of days ago DD2 cried and I had a very tiny leak but enough to leave a spot on my shirt.

Apparently this has nothing to do with your milk supply/production once you've had bub.