-
-size of a pin head
-the heart begins to beat
-internal organs and circulatory system begin to form
-egg attaches to lining of the uterus
-critical stage for the brain and spinal cord development -
- size about 1/4th inch -face, eyes, ears, and limbs take shape -bones begin to form
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-size about 1 inch
-nostrils, mouth, lips, and eyelids form
-buds for all 20 baby teeth appear
-fingers and toes almost complete
-all organs present but still immature -
-about 3 inches long
-weighs 1 ounce
-can suck on thumb, swallow, hiccup, and move around
-Facial features become clearer -
-about 6 i/2 to 7 inches long
-weighs about 4 to 5 ounces
-hair, eyelashes, and eyebrows appear
-teeth continue to develop
-organs are maturing
-becomes more active -
-size about 8 to 10 inches long
-weighs 8 to 12 ounces
-fat deposits under skin, but fetus appears wrinkled
-breathing movements begin -
-size about 10 to 12 inches long
-weighs about 1 1/2 to 2 pounds
-has periods of activity followed by periods of rest and quiet -
-size about 10 to 12 inches
-weighs 2.5 to 3 pounds
-rapid weight gain continues
-may react to loud noises with a reflex jerking action
-moves into a head down position -
-size about 17 to 18 inches long
-weighs about 5 to 6 pounds
-weight gain continues
-skin becomes smooth as fat deposits continue
-movements decrease as the fetus has less room to move around
-acquires disease-fighting antibodies from the mother's blood
-descends into pelvis, ready for birth