Title: Pregnancy Guide, Stages of Pregnancy, Fetus Growth
Headings: Week-by-Week Pregnancy Guide
Week-by-Week Pregnancy Guide
Trimester One - Weeks One through 12
First Trimester Fetal Development
Trimester Two - Weeks 13 through 27
Second Trimester Fetal Development
Trimester Three - Weeks 28 through 40
Third Trimester Fetal Development
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Content: The digestive and respiratory systems, arm and leg buds, and eye and ear structures begin to form. Week Six: The fetus is about an eighth-of-an-inch long. Organs and facial features become more well defined. The neural tube closes, which will later differentiate the brain, spinal cord, and nerves. Week Seven: The fetus's limbs and eyes and ear buds, and the umbilical cord linking the fetus to the placenta, are visible. Week Eight: The fetus forms fingers and toes, and the facial features become more distinct. Week Nine: