Transcript
Page 1: Development of the Fetus
Page 2: Development of the Fetus

The Female Reproductive Organs

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The Female Reproductive Organs

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Conception

The sperm and ovum, or egg, come together in the Fallopian Tube. The cell that is formed is now known as a zygote. The baby will be a zygote until week 2.

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Fertilization & ConceptionVideo

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First MonthWeeks 1-4

• By the end of the first month, the embryo (baby from week 2-8) is about the size of a sesame seed.

• The neural tube is developing (brain, spine and nerves).

• The heart is forming and begins to beat

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At 4 Weeks

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First Month

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Two MonthsWeeks 5-9

• The embryo is about the size of a grape.

• The heart has divided into right and left chambers. It is beating twice as fast as your heart.

• The nose, mouth and ears are forming.

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At 9 Weeks

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Two Months

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Three MonthsWeeks 10-13

• By now the fetus (name of baby from 8 weeks to birth) is 2 1/2 to 3 inches long.

• He has begun swallowing and kicking.

• All vital organs and muscles have formed and are beginning to function.

• Fingerprints are formed.

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At 13 Weeks

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Four MonthsWeeks 14-17

• Your baby is covered with a layer of thick, downy hair called lanugo.

• His heartbeat can be heard clearly.

• Can squint, frown, grimace, pee and suck thumb.

• Forming taste buds.

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At 15 Weeks

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4 months

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Five MonthsWeeks 18-22

• A protective waxy coating

called vernix caseosa begins to form on baby's skin.

• By the end of this month, your baby will be nearly 11 inches long and weigh almost a pound.

• The five senses are each forming.

• Sex can now be determined.

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At 20 Weeks

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Six MonthsWeeks 23-27

• Eyebrows and eyelids are visible.

• Your baby's lungs are filled with amniotic fluid, and he has started breathing motions.

• If you talk or sing, he can hear you.

• 2 lbs and 12 ½ inches long

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At 27 Weeks

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6 Months

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Seven MonthsWeeks 28-31

• By the end of the seventh month, your baby weighs about 3 1/2 pounds and is about 14 inches long.

• Body is well-formed.• Fingernails cover his

fingertips.• Can see light and has

20/400 vision (can only see objects close to the face.)

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At 30 Weeks

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Eight MonthsWeeks 32-35

• Your baby is gaining about half a pound per week, and layers of fat are piling on.

• He has probably turned head-down in preparation for birth.

• He weighs between 4 and 6 pounds.

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At 34 Weeks

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Nine MonthsWeeks 35-40

• Your baby is a hefty 6 to 9 pounds and measures between 19 and 22 inches.

• As he becomes more crowded, you may feel him move around less.

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At 40 Weeks

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