Baby development at 40 weeks

How big?

It’s hard to say for sure how big your baby will be, but the average newborn weighs about 7 1/2 pounds and is about 20 inches long.

Skin color: What to expect

Babies of all ethnicities are born with reddish-purple skin that changes to pinkish-red in a day or so. The pink tint comes from the red blood vessels that are visible through your baby’s still-thin skin. Because your baby’s blood circulation is still maturing, his hands and feet may be bluish for a few days. Over the next six months, your baby’s skin will develop its permanent color.