Each week your newborn baby will grow fast and stronger. Speaking of his/her favorite toy, by week 13, the baby may be winking at his/her toys when they come into his/her field of vision, or baby may even be picking up that toy for himself (herself). Not only is the baby alternative that toy up, he/she is probably studying it thoroughly, with his/her eyes and his/her mouth.
Newborn babies have a limited capacity to regulate their own body temperature. They are unable to shake and only have mature sweat glands in their head, neck, hands and feet.
This week your baby's breathing will become clearer as they grow and develop. In 13th week of newborn baby may be displaying some early signs of teething, such as increased saliva production, hand biting, and increased eating on things. This week your baby has now developed longer sleeping sessions as his/her feeding has increased as well as the storing capacity so that he/she continued asleep during the whole night without waking up for short feeding
as he/she did few weeks earlier. The baby is now slowly developing some sense of day and night times as well.
