With all of my bio's I would get really worried between 6 and 8 weeks. It sounds like you are doing fine. You are probably past the swollen over-flowing breast stage and have now entered the constant worry if she's getting enough state,

. Just remember, like was already said, what goes in must come out. I'm sure you're doing fine, the worst thing for breastfeeding is stressing about breastfeeding. Relax, enjoy your baby. And, just be aware of whats coming out, and that will tell you whats going in.
Congrats!