Your newborn baby will undergo a variety of physical changes during her first month. Here are some of the things you can expect to see: Baby's birth weight

• normal birth weight ranges from 5.5 pounds to 10 pounds
• 7.5 pounds is the average birth weight
• boys are usually heavier than girls
• first babies generally weigh less than later siblings
• large parents tend to have large babies, and small parents usually have small babies
• newborns lose around 8 ounces in the first few days after birth and regain it by about 10 days
• newborns typically gain about 4 to 8 ounces per week during the first month

Baby's head and face

• average head circumference at birth is 13.5 inches
• by the end of the first month, the average head circumference is 14.8 inches
• a baby's head and brain grow at their fastest rate during the first 4 months of life
• a baby born vaginally may have an irregularly shaped head and bruising which should correct itself by the end of week one
• babies commonly develop small pimples on the face in the first few weeks
• some babies have squinty, bloodshot eyes caused by swelling during labor and delivery
• babies' eyes look bigger and brighter within a couple of weeks after birth
• baby -- especially one born before her due date -- may have downy hair on forehead and cheeks; it goes away within a few weeks
• babies may lose some or all of the hair they had at birth, creating temporary bald spots; new hair will replace it

Babies do a lot of changing and growing during the first month. Knowing what to expect can reduce the amount of stress and worry new parents have. Source: Web MD Read more about the exciting first month at Bringing baby home: Surviving the first month postpartum