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Month 1
- two weeks they are the size of a pin head
- egg attaches to lining of uterus
- brain ans spinal cord develop
- internal organs began to form
- heart begins to beat
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Month 2
- their size is 1/4 inch long as month begins
- face, eyes, ears, and limbs take shape
- bones begin to form
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Month 3
- 1 inch long as month begins
- nostrils, mouth, lips, and eyelids form
- buds for all 20 baby teeth appear
- fingers and toes are almost complete
- all organs present but still immature
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Month 4
- 3 inches long
- weighs 1 ounce as month begins
- can suck its thumb, swallow, hiccup, and move around
- facial features become clearer
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Month 5
- 6 1/2 - 7 inches long
- weighs about 4-5 ounces as month begins
- hair, eyelashes, and eyebrows appear
- teeth continue to develop
- organs are maturing
- becomes more active
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Month 6
- 8-10 inches long
- weighs about 8-12 ounces as month begins
- fat deposits under skin, but fetus appears wrinkled
- breathing movements begin
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Month 7
- 10-12 inches long
- weighs about 1 1/2-2 pounds as month begins
- has periods of activity followed by periods of rest and quiet
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Month 8
- 14-16 inches
- weights about 2 1/2-3 pounds as month begins
- rapid weight gain continues
- may react to loud noises with a reflex jerking action
- moves into a head-down position
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Month 9
- 17-18 inches long
- weighs about 5-6 ponds as month begins
- weight gain continues
- skin becomes smooth as fat deposits continues
- movements decease as the fetus has less room to move around
- acquires disease-fighting antibodies from the mother's blood
- descends into pelvis, ready for birth
