This is the biggest question of all. First is to check output, consider weight gain, and is your baby content and growing. See our diaper guide to see if your baby is having enough output. Whatever goes in must come out. Baby should have at least 6 wet diapers in a 24 hour period by day 6 of life. Next you can do a weighted feed where you weigh the baby, nurse and then weight your baby again. The difference between the weights is approximately how much your baby transferred. Checking to see if your baby is growing appropriately and content is also another way to see if you are making enough milk. Your baby should reach birth weight by 2 weeks and double birth weight by 6 months. This should be about 4-8 ounces weight gain a week. If you have any further concerns please reach out for an appointment.