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Month 1
During the first month, the baby is the size of a pinhead. The egg attaches to the lining of the uterus. This is a critical stage for the brain and spinal cord to to develop. The heart begins to beat. https://www.cdc.gov/ncbddd/birthdefects/diagnosis.html
http://www.webmd.com/baby/tc/first-trimester-screening-for-birth-defects-topic-overview#3
Glencoe - The Developing Child -
Period: to
Birth Defects
Down Syndrome: There is an extra chromosome
Heart Defects:
Hearing Loss:
Tay-Sachs Disease: Death at age 2 or 3
Cleft Lip: Causes problems with eating and speech -
Month 2
The baby is the size of 1/4th of an inch. The face, eyes, ears, and limbs take shape. The bones begin to form. -
Month 3
The nostrils, mouth, lips, and eyelids form. The starts for 20 baby teeth form. Fingers and toes are almost complete. All the organs there, but are immature.
Glencoe - The Developing Child -
Month 4
The baby can suck it's thumb, swallow, hiccup, and move around. Facial features become clearer. The baby's limbs and joints are fully formed.
Glencoe - The Developing Child
http://www.bounty.com/pregnancy-and-birth/pregnancy/pregnancy-week-by-week/16-weeks-pregnant -
Month 5
The baby is fully formed. There will be many aches and pains in the stomach. Hair, eyelashes, and eyebrows appear. Organs continue to mature. Glencoe - The Developing Child
http://www.bounty.com/pregnancy-and-birth/pregnancy/pregnancy-week-by-week/20-weeks-pregnant -
Month 6
The fat deposits under the skin, but the fetus is wrinkly. The baby begins to have breathing movements. The size of the baby is about 8 to 10 inches.
Glencoe - The Developing Child
http://www.bounty.com/pregnancy-and-birth/pregnancy/pregnancy-week-by-week/26-weeks-pregnant -
Month 7
The baby is fully developed. It will have periods of activity and periods of rest. The size is about 10 to 12 inches long.
Glencoe - The Developing Child
http://www.bounty.com/pregnancy-and-birth/pregnancy/pregnancy-week-by-week/30-weeks-pregnant -
Month 8
The baby gains wait really quick. It may react to loud noises with a reflex jerking action. The baby moves into the head down position.
Glencoe - The Developing Child -
Month 9
The baby's weight gain continues to grow. The skin becomes smooth. The movements decrease.
Glencoe - The Developing Child -
Month 10
The average consist of 40 weeks.
