Sorry to pop in to this conversation but thank you for asking this question Tallulahc! My little one is 9 days old and I was wondering the same thing. I'm so preoccupied with making sure he's getting enough food, I'm a bit of a worry wart! Sometimes he eats for 25 minutes and then today it's been all short feeds, 10-15minutes. Sometimes I wish he was clear so I could be sure!