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Month 1
Size:at two weeks,the size of a pinhead.
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 (6mm) long as month begins.
Face,eyes,ears,and limbs take shape.
Bones begin to form. -
Month 3
Size:About 1 inch (25mm) 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 (7.6cm) long,weighs 1 ounce (28g) as month begins.
Can suck its thumb,swallow,hiccup,and move around.
Facial features become clearer. -
Month 5
Size:About 6 1/2 (16-17 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 (21-15 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. -
Month 9
Size:About 17-19 inches (43-46 cm) long, weighs about 5-6 pounds (2.3-2.7 g) as month begins.
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.
