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Week Three
The sperm and feamle egg combine to make one cell known as a zygote. This process is called fertilazation. I found this at myoclinic.com -
Week six
Growth is rapid at this time. Also facial features start devolping. Small buds also start growing that will turn into arms. -
Week eight
Eyes and fingers begin growing. also arms have grown longer at this point. -
Week twelve
The baby's finger nails start to get longer in length and baby is about 2 1/4 inches long. -
week fourteen
The baby's sex can be identified. The neck also grows longer at this time. Also the baby's red blood cells are forming in its spleen. -
Week 16
The baby is about to hit a growth spurt at this time. Also the baby is about the size of an avocado at this point. -
Week 17
The baby's sketon is changeing from cartilage to bone at this time. -
Week 20
The baby is the size of a banna. also they start swallowing at this period. -
Week 23
The baby can feel your movements. Also they are about the size of a mango. -
Week 26
The baby's hearing is now better as well. They also are getting more baby fat at this time. -
Week 33
The baby is about four pounds right now. Also they are starting to lose that alien look they have.