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Month 1
- Size of a pinhead
- Egg attaches to the living uterus
- the critical stage for spinal cord and brain development
- The heart begins to beat
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Month 2
- About 1/4 inch
- face, eyes, ears, and limbs take shape
- bones begin to form
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Month 3
- About 1 inch long
- nostrils, mouth, lips, and eyelids begin to form
- Buds for the baby teeth appear
- fingers and toes are almost complete
- organs present but immature
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month 4
- About 3 inches
- Can suck its thumb, swallow, and hiccup
- facial features become more clear
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month 5
- About 6-7 inches
- Hair, eyelashes, and eyebrows appear
- Teeth continue to develop
- Organs are maturing
- Becomes more active
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month 6
- About 8-10 inches
- Fat deposits under the skin, but fetus appears wrinkled
- Breathing movements begin
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month 7
- About 10-12 inches
- Have periods of activity followed by periods of rest and quiet
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month 8
- about 14-16 inches
- rapid weight gain continues
- may react to loud noises with reflex action
- moves into head-down position
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month 9
- about 17-18 inches
- weight gain continues
- skin becomes smooth
- movements decrease as fetus has less room to move
- decends into pelvis
