Weeks 29-31 – Rhythmic breathing and body temperature are now controlled by the brain. The lungs are capable of breathing air, although medical help may be needed.
Week 32-34 – Baby has eyes that are open during alert times and closed during sleep. Almost all babies born at this stage of growth will survive.
Week 35-37 – Baby weights about 5.5 pounds at this stage. Muscle and bones are fully developed.
Week 38-40 – Your baby could be born any day now. At the time of birth, a baby has more than 70 reflex behaviors, which are automatic behaviors necessary for survival.