Awesome is this same with beer?

So that means my milk is good?

I drank 3 half glasses and I came out perfectly fine for my first time drinking wine

No need to worry. As long as you can drive, you can nurse. It's next to impossible for you to pass on alcohol to her that could do any damage. The main issue is if you can properly care for her after drinking.

if it didn't alter your normal functionality ..you're just fine

depends on the amount of wine