My colostrum came in!

Mandy • I am 34 pregnant w my second. A baby boy. My daughter, who is 4, was born a preemie and thus I'm a NICU Mom.
Anyone else have leaking boobs already? I am 31 weeks and 1 day. 
I hope it's normal as I found someone telling me pumping too soon can cause early labor. 
I plan to start pumping around 38 weeks just slightly to have a little bit of milk for baby in case something happens. 
Like I am sick or something, but I plan to breastfeed for a long time if possible.