At this age, your baby will likely be able to hear loud noises,
look at your face from a short distance, and lift her head up
briefly. She may also: - have a spontaneous or almost reflexive
smile - have a social smile that occurs in response to
something, like when you talk or sing to her. Keep in mind that
some babies develop the social smile a little later, when they
are one to two months old. Normal GrowthAfter they lose weight
during their first weight, babies then begin to gain about half
an ounce to a full ounce each day. This rapid weight gain helps
them to get back to their birth weight by the time they are two
weeks old. Don't worry if your baby surpasses her birth weight
though. That usually isn't a sign of overfeeding, and usually
just means that your baby didn't lose much weight during her
first days because she was a good feeder or your breast milk
came in quickly.