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Period: to
Week 1-2
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Period: to
Week 3-4
- conception
- zygote turns to a blastocyst
- rapid cell division begins
- blastocyst implants in uterus lining during week 4 and becomes and embryo
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Period: to
Week 5-6
- neural tube closes; brain and spinal cord will form
- heart, organs, and bones start to form
- develop head and trunk
- arm and leg limbs buds start to appear
- brain begins to develop
- eyes and ears begin to form
- baby is 1/6 inches long
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Week 7-8
- everything begins to form and grow
- trunk and neck begin to straighten
- baby about 1/2 inches long
- all major organs are formed
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Period: to
Week 10
- head is half the size of the baby
- all body parts are present
- baby is 1 1/2 inches long
- limps are idenitiable
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Week 11
- genitals develop
- head is about half
- teeth buds form
- baby is 1/3 ounces
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Period: to
Week 12
- finger nails grow
- face is more defined
- intestines are in the abdomen
- baby is 2 1/2 inches
- weighs 1/2 ounces
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Week 14
- baby sex well be apparent
- baby can swallow and make urine
- baby is about 3 1/2 inches in length and weighs 1 1/2
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Period: to
Week 16
- baby is moving around but mom cant feel it
- baby is about 4 1/2 inches and weighs about 4
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Week 18-19
- baby begin to hear
- digestive system works
- vernix caseoa covers the baby
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Period: to
Week 20- 21
- regular and wake patterns
- all organs and structures
- breathing movement occur
- covered in lanugo
- may suck thumb
- baby is 6 1/3 inches and weighs about 11 ounces
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week 22
- nails, fingerprints, eyebrows, lashes and probably some hair
- more active
- heartbeat heard with a stethoscope
- lowest limit of viability(survival outside of the mother)
- baby is about 7 1/2 inches in length and weighs about 1 pound
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Period: to
Week 24
- wrinkly skin, translucent and pinish red
- lung developement
- regular sleep and wake patterns
- babys about 8 inches and 1 1/3 pound
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Week 28-29
- eyes begin to partically open and close
- central nervous system
- longsare capable of breathing air baby kicks baby is about 10 inches
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Period: to
Week 31- 32
-finished most major development
- rapid weigh gain begins
- lanugo starts to fall off
- baby is about 11 inches -
Week 34
- continues to grow finger nails
- develop breathing pattern
- skin is pink and smooth
- 12 inches and 4 1/2 pound
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Period: to
Weeek 36-37
- takes up most of the stack
- starts to turn heard down
- 13 1/2 inches and 6 pounds
- will gain 1/2 pounds before being born
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Week 38-40
- brain will develop
- double its size
- longs develop -week 39 baby is constant fulterm
- weight gains help with tempature