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Conception
Conception happens when the sperm fertilizes the egg -
Period: to
First Trimester
In the first trimester fetal development begins soon after conception. The sperm and egg unite, it goes into the uterus, the nueral tube closes. -
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Zygote
The period of the zygote happens after the female egg is fertilized and makes one single-celled organism. This period lasts two weekes -
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Embryo
Occurs between week 3 and week 8. A mass of cells becomes a distinct human being -
Month One
During the first month the heart and primitive circulatory system start to form -
Month Two / Week 5
Baby's heart starts to beat -
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Fetus
The period of the fetus lasts from the ninth week of pregnancy to up until brith. -
Month Three
Babies eyes and ears start to take shape -
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Second Trimester
In the second trimester you will find out your baby's sex and feel your baby move. Maybe even hear his or her heartbeat when you go to a check up at the doctors. -
Month Four
During the fourth month you can determine your baby's gender -
Month Five
Your babies hair begins to form -
Month Six
Your baby's eyes open during the 6th month of pregnancy -
Period: to
Third Trimester
Fetal development continues during the third trimester. The baby will open his or her eyes, gain more weight, and prepare for delivery. -
Month Seven
Babies hearing is fully developed -
Month Eight
Baby starts kicking more often -
Birth
When the baby is born
