Trimester of Pregnancy
Category: Other
Updated: 7 Dec 2017
Contributors
Created byRosemary Coleman
Attachments
Events
My birthdayZygote is formedWeek 1-3: The egg is being fertilizedWeek 4-6: The fertilized egg is in the womb.Week 7-9: The brain is starting to develop.Week 10-12: Eyes on the baby are starting to react to light.Week 13-16: By week 13 you can hear the heartbeat.Week 17-20: The eyebrows and eyelashes start to grow.Week 21-24: The baby is “viable” around the twenty-fourth week.Week 25-28: The brain, digestive system, and lungs are developed but not yet mature.Week 29-32: The baby's head starts to move down.Week 33-36: The nervous system is fully developed.Week 37-40: The lanugo fur has disappeared. The baby is 3-4 kg.Week 37-40: The baby's head moves farther down the pelvis.
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