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Pregnancy and Prenatal Development
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Month 1- Baby
At two weeks, the size of a pin head.
Egg attatches to lining of uterus.
Critical stage of brain and spinal cord development.
Internal organs and circulatory system begin to form.
The heart begins to beat. -
Month 1- Mom
Missed menstrual period.
Other signs of pregnancy may not yet be noticable. -
Month 2- Baby
Size of about 1/4 inch long as month begins.
Face, eyes, ears, and limbs take shape.
Bones begin to form. -
Month 2- Mom
breasts begin to swell.
pressure on bladder from enlarging uterus results in need to urinate more frequently.
possible nausea ("morning sickness")
fatigue is common. -
Month 3- Baby
About 1 inch long as month begins.
Mostrils, mouth, lips, teeth buds, and eyelids form.
Fingers and toes almost complete.
All organs present, although immature. -
Month 3- Mom
Breats become firmer and fuller, may ache.
Nausea, fatigue, and frequent urination may continue.
Abdomen becomes slightly larger. The uterus is about the size of an orange.
Weight gain may total 2-4 pounds. -
Month 4- Baby
About 3 inches long, 1 ounce as month begins.
Can suck its thumb, swallow, hiccup, and move around.
Facial features become clearer. -
Month 4- Mom
Abdomen continues to grow slowly.
Most discomforts of early pregnancy, such as morning sickness, usually gone.
Appetite increses. -
Month 5- Baby
About 6 1/2- 7 inches long, about 4-5 ounces as month begins.
Hair, eyelashes, and eyebrows appear.
Teeth continue to develop.
Organs are maturing.
Becomes more active. -
Month 5- Mom
Enlarged abdomen becomes apparent.
Slight fetal movements felt.
Increased size may begin to affect posture. -
Month 6- Baby
About 8-10 inches long, about 8-12 ounces as month begins.
Fat deposits under skin, but fetus appears wrinkled.
Breathing movements begins. -
Month 6- Mom
Fetal movements sensed as strong kicks, thumps, and bumps. Some may be visible.
Weight gain by the beginning of this month may total 10-12 pounds. -
Month 7- Baby
About 10-12 inches long, 1 1/2-2 pounds as month begins.
Periods of activity followed by periods of rest and quiet. -
Month 7- Mom
Increased size may affect posture. -
Month 8- Baby
About 14-16 inches long, about 2 1/2-3 pounds as month begins.
Weight gain continues rapidly.
May react to loud noises with a reflex jerking action.
Moves into a head-down position. -
Month 8- Mom
Discomfort may result from increesed size. Backache, leg cramps, shortness of breath, and fatigue are common.
Fetal kicks may disturb the mother's rest.
At the beginning of this month, weight gain totals about 18-20 pounds. -
Month 9- Baby
About 17-18 inches long, 5-6 pounds as month begins.
Weight gain continues until the week before birth.
Skin becomes smooth as fat deposits continue.
Movements decrease as the fetus has less room to move around.
Acquires disease-fighting antibodies from mother's blood.
Descends into pelvis, ready for birth. -
Month 9- Mom
'Lightening" felt as the fetus drops into the pelvis. Breathing becomes easier.
Other discomforts may continue.
A total weight gain of 25-35 pounds in typical.
False labor pains may be experienced.