alcohol is metabolized out of your breastmilk at a similar rate as from your blood. in other words alcohol does not build up in the breastmilk and there is no reason "pump and dump" after your glass of wine. a good rule of thumb is that when you feel ready to drive your car then you are probably ok to nurse your baby. having a glass of wine comes down to timing. if you have your wine right after you nurse then you will maximize the chances that the alcohol has worn off by the next time baby wakes up for a feeding.
is an occasional glass of wine safe while breastfeeding?