If you drink when you are breastfeeding small amounts of alcohol will get passed to your baby through your breast milk. If you do decide to drink then you should have no more than one or two units, once or twice a week.  Alcohol clears from your body at a rate of about one unit every two hours so it’s a good idea to wait for a couple of hours after having a drink before breastfeeding. If it’s hard to know when your baby will want a feed, you may want to plan ahead and express milk beforehand for special occasions when you know you are going to drink. But you should only do this once breastfeeding has been established.