how much milk (in ml) does your 9 week old drink?

The average 10-week-old baby drinks about 4-6 oz formula every 3 to 4 hours, so for it's the thereabouts for a 9 week old baby. For breastfeeding, a baby that age should be nursing more frequently, about once every two hours. If your baby seems full and satisfied for a few hours, then he is getting enough.