Pumping breast help

Is it normal for there to be nothing coming out. Im trying exclusively pumping and I have nothing coming out. I gabe birth june 21 at 330am. Baby gets fussy like she wants to eat but nothing is coming out. The first pump I got 4ml. Witch she drank. The second pump I got 5ml. Witch I put away. But after that I'm dry. Nothing. My boobs dont hurt. I know it takes time for milk to come in but is it normal for nothing to be there. And yes I'm staying hydrated and eating good.