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2018 BCE
Month 9
About 17-18 inches long, weighs about 5-6 pounds
Weight gain continues
Skin becomes smooth as fat deposits conitue
Movements decrease as the fetus has less room to move around
Acquires disease-fighting antibodies from mother's blood -
Month 1
At two weeks, the size of a pinhead
Egg attaches to the lining of the uterus
A critical stage for brain and spinal cord development
Internal organs and circulatory system begin to form
The heart begins to beat -
Period: to
Fetal development
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Month 2
The fetus is about 1/4 inch long as the month begins
Face,eyes,ears, and limbs take shape
Bones begin to form -
Month 3
The fetus is about 1 inch long as month begins
Nostrils, mouth, lips, and eyelids form
Buds for all 20 baby teeth appear
Fingers and toes almost complete
All organs present but still immature -
Month 4
The fetus is about 3 inches longs, weighs 1 ounce as month begins
Can suck its thumb, swallow, hiccup, and move around
Facial features become clearer -
Month 5
About 6-7 inches long weighs about 4-5 ounces
Hair, eyelashes, and eyebrows appear
Teeth continue to develop
Organs maturing
Becomes more active -
Month 6
About 8-10 inches long, weighs about 8-12 ounces
Fat deposits under skin, but fetus appears wrinkled
Breathing movements begin -
Month 7
About 10-12 inches long weighs about 1-2 pounds
Has periods of activity followed by periods of rest and quiet -
Month 8
About 14-16 inches long, weighs about 2-3 pounds
Rapid weight gain continues
May react to loud noises with a reflex jerking action
Moves into a head-down position -
Month 9
Fetus decends into pelvis ready for birth