Your baby is the size of a Nectarine...
Your baby measures about 3.5 to 4 inches (8.9 to 10.2 cm) long from crown to rump. At this point your baby weighs about 1-1.5 ounces (28.4 grams).
Your baby can now squint, frown, grimace, pee and possibly suck his or her thumb. Thanks to brain impulses, your baby's facial muscles are getting a workout as tiny features form one expression after another.
The baby has also started secreting hormones of its own from its matured thyroid gland. Its body systems are also starting to work on their own. The digestive system is practicing moving food through the intestines while the renal system is creating and eliminating urine.
Your baby also continues to practice breathing the amniotic fluid through its lungs. In addition, he or she has developed soft nails on its fingers and toes. Your baby’s blood is also starting to form in its bone marrow and blood vessels. Its hands continue to develop as well and are becoming more functional.
As the eyes and ears continue to move into place, the baby’s mouth has gone through major development. The sucking muscles are growing strong and the salivary glands are almost fully developed. The esophagus, windpipe and larynx should all be present by the end of this week.
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