Fetal Development Pictures | 21 Weeks
Fetal Development at 21 weeks:
earsEarsAuditory ability has developed enough for the baby to react to sounds. Don't be surprised if you feel a flutter after a loud, sudden noise!
facial musclesFacial MusclesBaby will reach out to test his surroundings and exercise the muscles around his mouth and eyes. He's been breathing amniotic fluid for a little while already, but now he starts to swallow it, too.
amniotic fluidAmniotic FluidSome of the lanugo and other debris that baby swallows with the amniotic fluid will make up meconium in your baby's intestines, which will become his first bowel movement.
What's happening this week:
As the limbs grow longer and the senses develop further, your baby will stroke his face, suck his thumb and move around more often. Fat has begun to accumulate under the skin, although baby's 7 1/4 inch body is still thin.
Your pregnancy week by week: 21 Weeks Pregnant