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Your Baby Week Two

By Vincent Iannelli, M.D., About.com

Updated September 19, 2007

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

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Week Two Development

A two week old newborn baby.

A two week old newborn baby.

Photo © Karen Squires
Except for being a little more awake, not too much changes between week one and week two in your baby's developmental milestones.

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 Growth

After 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.

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