Mom

Before the pregnancy you inhaled 450 ml per breath; this has now increased to 650 ml. Because of this, you are also taking in more air per minute, up to 40% more.
While you used to take in 7.5 liters air of per minute, this is now 10.5 liters per minute. This is because you need more oxygen.

Baby

The baby is 48 centimeters long and weighs 3200 grams, the size of a winter melon. Your baby is now mature and will not grow much more.

Your baby has gained more fat so that he or she looks fuller and can keep himself or herself at the right temperature. The skin is a pinkish color and your baby’s hair may already be 5 centimeters long.
The nails are now also long. They are, however, not as strong as ours. They are more like membranes. You should therefore not cut the baby’s nails after birth. You can however carefully bite them off, tear them off or file them.

Your baby is now increasing 20 to 30 grams a day in weight. This is necessary to build up reserves for the first days after the birth, when he or she may need some time to get used to breast or bottle feeding.