Boobs leaking early?

Chelsea

So I'm 15w6d and I went to take a shower and I saw in my bra the sign my nipples had been leaking about a dime size circle not alot thankfully so I squeezed and sure enough a few drops formed it was clear but I feel like its to early for my breast to be producing anything with my first I was 7 or 8 month along before this happened. Is this normal to happen so soon? Or is anyone else have this happen?