Title: Pregnancy - week by week - Better Health Channel
Headings: Pregnancy - week by week
Pregnancy - week by week
Summary
On this page
Conception
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
Week 11
Week 12
Week 13
Week 14
Week 16
Week 18-20
Week 20
Week 24
Week 28
Week 32
Week 36
Week 40
Where to get help
Things to remember
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Content: The embryo has developed its placenta and amniotic sac. The placenta is burrowing into the uterine wall to access oxygen and nutrients from the mother’s bloodstream. Week 8
The embryo is now around 1.3 cm in length. The rapidly growing spinal cord looks like a tail. The head is disproportionately large. Week 9
The eyes, mouth and tongue are forming. The tiny muscles allow the embryo to start moving about. Blood cells are being made by the embryo’s liver. Week 10
The embryo is now known as a fetus and is about 2.5 cm in length. All of the bodily organs are formed.