Ideally, you can choose to drink right after breastfeeding your baby. So, you will get some hours before the next session of breastfeeding takes place. You don’t have to pump and dump your milk as there will be a lot of time for the alcohol to metabolize naturally. Unless there is an issue of engorgement or milk supply you don’t have to pump and dump. But just keep up with the timing and have drinks some hours before you feed the baby. Also, you should drink moderately. Excessive drinking can disturb the sleep pattern of the baby and affect its early development.