My Baby's Growth
Fetal development - month 9
Third trimester
At the end of 9 months:
- Baby is 19 to 20 inches long.
- Weight is about 7 to 7-1/2 pounds.
- The lungs are mature.
- Baby is now fully developed and can survive outside the mother’s body.
- Skin is pink and smooth.
- The baby settles down lower in the abdomen to prepare for birth and may seem less active.

