Verified answer

Not 2 cups but one in the morning is fine if you have to much the baby will become really restless and grumpy and it takes about 12 hours

Hmm I don't really know but I drink a lot of coffee 3-4c a day and my 2 month old baby sleeps like an angel. Maybe it doesn't pass through in too much quantity, or maybe my baby is just immune to it. I drank coffee through my pregnancy also.