Fetal Development

1
Fetal Development

• Parenting Class
• Unit 2

2
Signs of Pregnancy

• Missed Period
• Morning Sickness (nausea)
• Fatigue
• Breast Tenderness

3
First Trimester Week 1-13
Prenatal Development Effects on Mother
1. Cell multiplication Morning sickness
2. Face, eyes, ears, bones form 2. Missed menstrual period
3. All organs present, although immature Fatigue
4. Frequent urination
4
First Trimester

1. Month 1 Smaller than the size of a grain of
   rice, weighs less than 1 ounce. By end of the
   first month, the heart is beating and the brain,
   nervous system, arms legs start to form.
2. Month 2 Smaller than the size of a grape (1)
   still less than 1 ounce. Major organs (heart and
   lungs) are fully formed.
3. Month 3 About size of a pickle (4) weighs
   little more than 1 ounce. Teeth start developing
   may hear heart beat.

5
Second Trimester Week 14 - 28
Prenatal Development Effects on Mother
Suck thumb, swallow, hiccup, eyes closed 1. Most discomfort of early pregnancy are gone
2. Fetus becomes active, teeth develop 2. Mother can feel the baby
3. Fat begins to be deposited under the skin, practice breathing begins 3. A lot of fetal movement
6
Second Trimester

1. Month 4 About as long as a carrot (6) weighs 5
   ounces. Has eyelashes and eyebrows kicks and
   moves.
2. Month 5 As long as an eggplant (8-12) weighs
   about 1 pound. Has fingernails now!
3. Month 6 As long as a pineapple (12) weighs
   about 1 ½ pound. Skin is red and wrinkled,
   covered with fine, soft hair.

7
Third Trimester Week 29 - 42
Prenatal Development Effects on Mother
1. Periods of activity, followed by periods of rest 1. Posture is effected by size of fetus
2. Moves into head down position 2. Backache, leg cramps, shortness of breath, tired, fetus kicks
3. Disease fighting antibodies acquired by the fetus from the mothers blood 3. Baby drops, false labor may occur
8
Third Trimester

1. Month 7 As long as a celery stalk (15),
   weighs about 3 pounds. Can suck thumb and hear
   moms voice.
2. Month 8 As long as a watermelon (18), weighs
   about 5 pounds. Brain is growing very fast! Lungs
   still not ready.
3. Month 9 As long as a loaf of Italian bread
   (20), weighs about 7 pounds. Lungs are mature
   now and ready to work on their own.

9

• http//pregnancy-calendar.adoption.com/first-trime
  ster/week-1.html