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Month 1
-Size: at two weeks, the size of a pin head
-Egg attaches to lining of uterus
-Critical stage for brain and spinal cord development
-Internal organs and circulatory system begin to form
-The heart begins to beat -
Month 2
-Size: About 1/4 inch (6 mm)
-Face, eyes, ears, and limbs take shape
-Bones begin to form -
Month 3
-Size: About 1 inch (25 mm) 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
-Size: about 3 inches (7.6 mm) long. weighs about 1 ounce (28 g) as month begins
-Can suck its thumb,swallow,hiccup, and move around
-Facial features become clearer -
Month 5
-Size: about 6 1/2- 7 inches (16-18 cm) long, weighs about 4-5 ounces (113-142 g) as month begins
-Hair, eyelashes, and eyebrows appear
-Teeth continue to develop
-Organs are maturing
-Becomes more active -
Month 6
-Size: about 8-10 inches (21-25 cm) long, weighs about 8-12 ounces (227- 340 g) as month begins
-fat deposits under skin, but fetus appears wrinkled
-breathing movements begin -
Month 7
-Size: about 10-12 inches (25-31 cm) long, weighs about 1 1/2-2 pounds (680-907 g) as month begins
-has periods of activity followed by periods of rest and quiet. -
Month 8
-Size:about 14-16 inches (36-41 cm) long, weighs about 2 1/2-3 pounds (1.0-1.4 kg) as month begins
-rapid weight gain continues
-may react to loud noises with a reflex jerking action
-moves into a head-down position -
Month 9
-Size: about 17-18 inches (43-46 cm) long, weighs about 5-6 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
