This poop is black and sticky. Usually babies release meconium within twelve hours after birth, but it can also take a day or two. This is nothing to worry about.
The meconium is followed by so-called transitional stools. These are thin, yellow-green and much less sticky. Transitional stools usually occur within two to three days and this is a sign that the digestive system is starting to work and the breastfeeding has gotten off to a good start.
Normal stools in babies are yellow and thin. With breastfeeding you can get real squirt diapers. In the beginning, a baby has a dirty diaper six to eight times a day, usually immediately after a feed. This becomes less after a few weeks. Some babies poop more than others. There is no telling what will happen. When breastfeeding, a baby will sometimes only poop once every seven or ten days.