Baby Developing inside you

Fetal Development


Baby developing inside you
over the weeks and months
baby 25 week fetus




 

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Week Twenty Five: Exploration continues

  
You are 25 weeks pregnant. (fetal age 23 weeks)
  • The unborn child is 34 cm in length and weighs almost 690 grams.
  • Baby is around 13.5 inches in length and weighs 1 and half pounds.
  • Bones are becoming solid, hands are now fully developed.
  • The brain is growing rapidly, the brain cells are starting to mature.
  • The sexual organs are fully developed.
Baby is now pretty well built portion wise even though it still has little body fat and its skin is thin. The structures of the spine begin to form -- All 33 rings, 150 joints and 1000 ligaments. The tiny brain is growing rapidly, and the baby is starting to fill the space in your uterus. The uterus is now about the size of a soccer ball and mom looks pregnant.

Twins 25 weeksYour baby's hands are now fully developed, although some of the nerve connections to the hands have a long way to go. Dexterity is improving. Your baby can make a fist and clasp objects placed in palm. Exploring the structures inside your uterus may have become baby's prime entertainment. Fascinated by the amount of tactile stimulation a fetus gives itself; it touches a hand to the face, one hand to the other hand, clasps its feet, touches its foot to its leg, its hand to its umbilical cord. Twins will explore each other and begin their bonding.
See: Twins 3D sonagram movie.

Blood vessels of the lungs develop. Your baby's nostrils begin to open. The nerves around the mouth and lip area are showing more sensitivity now. Their swallowing reflexes are developing. Baby can hear sounds outside the womb and the brain cells are starting to mature also. Already it can learn and remember and can recognise its mother and fathers voice. The inner ear bones have hardened so hearing is more acute. Baby may hear your partner's voice more easily than yours, as baby is sensitive to a deeper pitch.

Babies born at 25 weeks of pregnancy have about a 50% chance of survival.


Rumaisa and her non-identical twin, Hiba were born in Sept. 2004 14 weeks premature by c-section. At birth, Hiba weighed 1 pound and 4 ounces (567g) while Rumasia weighed just 8.5oz (244g) and was just 10 inches (25.5cm) long.

<<< Week 24  |  Month 6  |  Week 26 >>>


  

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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