Title: Early Pregnancy Fetal Development
Headings: Early Pregnancy Fetal Development
Early Pregnancy Fetal Development
Early Pregnancy
4 Weeks of Pregnancy
7 Week Embryo
8 Week Fetus
10 Week Fetus
12 Week Fetus
16 Week Fetus
24 Week Fetus
26-28 Week Fetus
30-39 Week Fetus

Content: 2 ﻿ The inner cells of the embryo become the fetus. The outer cells become the amniotic sac, which surrounds the fetus through the duration of the pregnancy, and the placenta, which is attached to the uterine wall, begins to grow and nourish your baby. 2
4 Weeks of Pregnancy
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Prenatal care is so important to a baby's health—even if you don't know you're pregnant yet. 3 ﻿ As your body prepares for a growing baby, you may show some signs of early pregnancy at four weeks like bloating, breast tenderness, mood swings and nausea, 4 ﻿ and it's right around now that you could find out that you're pregnant. Meanwhile your embryo will go through three stages of fetal kidney development: pronephros, mesonephros and metanephros. During the fourth week, the first stage (pronephros) disappears so that the second stage (mesonephros) can begin forming. 5 ﻿
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7 Week Embryo
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The hand plates become present this week, and the baby is about 1.5 centimeters crown-rump length (CRL) by the end of the week (at the start of the eighth week). 6 ﻿ The genital tubercle is present, but you can't distinguish the sex by sight at this point. Nasal pits are also forming.