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Period: to
Prenatal Development
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Month One - Mom
Missed menstrual cycle -
Month One - Baby
Size of a pin head.
Egg is attached to lining of uterus.
Critical stage for brain and spinal cord development.
Internal organs and circulatory system begins to form.
The heart begins to beat. -
Month Two
Breast began to swell.
Pressure on bladder from enlarging uterus result in needing to urinate more frequently.
Possible naausea.
Fatigue -
Month Two - Baby
1/4 of an inch long.
Face, eyes, ears, and limbs take shape.
Bones began to form. -
Month Three - Mom
Breast 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 3 - Baby
About 1 inch long.
Nostrils, mouth, lips, teeth buds, and eyelids form.
Fingers and toes almost complete.
All organs present, although immature. -
Month 4 - Mom
Abdomen continues to grow slowly.
Most discomforts of early pregnancy, such as morning sickness, usually gone.
Appetite increases. -
Month 4 - Baby
About 3 inches long 1 ounce.
Can suck its thumb, swallow, hiccup, and move around.
Facial features become clearer. -
Month 5 - Mom
Enlarged abdomen becomes apparent.
Slight fetal movement felt.
Increased size may begin to affect posture. -
Month 5 - Baby
About 6.5-7 inches long and 4-5 ounces.
Hair, eyelashes, and eyebrows appear.
Teeth continue to develop.
Organs are maturing.
Becomes more active. -
Month 6 - Mom
Fetal movement sensed as strong kicks, thumps, and bumps. Some may be visable.
Weight gain by the beginning of this month may total 10-12 pounds. -
Month 6 - Baby
About 8-10 inches and 8-12 ounces.
Fat deposits under skin, but fetus appears wrinkled.
Breathing movement begins. -
Month 7 - Mom
Increase size may affect posture. -
Month 7 - Baby
10-12 inches long and 8-12 ounces.
Periods of activity followed by periods of rest. -
Month 8 - Mom
Discomfort may result for increase size. Backache, leg cramps, shortness of breath, and fatigue..
Fetal kicks may disturb the mother's rest.
Weight gain totals about 18-20 pounds. -
Month 8 - Baby
14-16 inches long and 2.5-3 pounds.
Weight gain continues rapidly.
May react to loud noises with a reflex jerking action.
Moves into a head-down position. -
Month 9 - Mom
"Lightening" felt as the fetus drops into the pelvis. Breathing becomes easier.
Other discomforts may continue.
Total weight gain of 25-35 pounds is typical.
False labor pains may be experienced -
Month 9 - Baby
17-18 inches long and 5-6 pounds.
Weight gain continues until the week before birth.
Skin becomes smooth as fat deposits continue.
Movement decreases as the fetus has less room to move around.
Acquires disease-fighting antibodies from mothers blood.
Descends into pelvis, ready for birth.
