Baby Developing inside you

Fetal Development


Baby developing inside you
over the weeks and months
18 week fetus baby inside




 

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Week Eighteen: Baby begins to hear

  
You are 18 weeks pregnant. (fetal age 16 weeks)
  • The fetus is now 6 inches long and weighs 7 ounces.
  • The fetus measures about 15cm and weighs almost 200 grams.
  • They can hear sounds and may be startled by loud noises.
  • Recognizable active and rest periods.
  • The skin is building a protective wax layer (vernix).
18 weeksVernix (a white cheese like protective material) forms on baby's skin with the lanugo, a soft lightly pigmented hair covering the body and limbs, both help to protect your baby's skin during the months in water. Your baby may hear your heart beating, your stomach rumbling or blood moving through the umbilical cord. He or she may even be startled by loud noises.

Tiny air sacs called alveoli begin to form in lungs and the vocal chords are formed. Baby goes through the motions of crying but without air doesn't make a sound; yet.

Your baby may have the same awake and sleep patterns of a newborn. Baby will have a favorite position for sleep and recognizable active and rest periods.

Your baby measures about 6 inches (15cm) crown to rump and weighs about 7 ounces (200gm).

<<< Week 17  |  Month 4  |  Month 5  |  Week 19 >>>


  

Week By Week Pregnancy Calendar

 
First Trimester
Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7  
Week 8   Week 9   Week 10   Week 11   Week 12   Week 13
Second Trimester
Week 14   Week 15   Week 16   Week 17   Week 18   Week 19   Week 20  
Week 21   Week 22   Week 23   Week 24   Week 25   Week 26
Third Trimester
Week 27   Week 28   Week 29   Week 30   Week 31   Week 32   Week 33  
Week 34   Week 35   Week 36   Week 37   Week 38   Week 39   Week 40
 
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