I leaked really bad from week 17 with my first baby. But not bad at all with this 1, just the odd spot now and again. It's all normal :)
If you face the shower head in the shower it can start lactation early especially if you are person like me that loves a hot shower.
I haven't started like leaking but it comes out if I squeeze. Sounds werid but I never now like what week your milk actually comes in so I've always checked. Lol