How do you know baby is eating enough? With all new babies, this is usually the number one question. With a bottle you can visually see how much your baby is eating but if it comes from the breast, how do you know? Unless you are going to weigh your baby before and after every feed (not recommended or you could drive yourself crazy!) we will never have an exact amount. However- there are signs to look for to see if baby is eating enough: After a feed does baby seem satisfied?