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Conception
A man's penis enters a woman's vagina and produces sperm. Thousands of little sperm seeds surround eggs inside the woman and fight to warm their way up to the lady egg. If she is feeling good about one of the lovie dovie sperm, she lets him enter and the process of making a baby begins. Image: http://pathofthebeagle.com/2012/01/04/the-selfish-gene-part-3/ -
Germinal
This stage is the shortest stage where the sperm combines with the egg. Cells begin to divide and begin creating an organism. This organism attaches to the uteris wall and fertalizes for a couple days. Within a week, the organism has grown 3 times the original size. http://www.xtimeline.com/evt/view.aspx?id=244257 -
Embryonic
Up until this stage, the baby has now earned the title, "embryo." The baby now has developed ECTODERM which entails the skin, the sense organs, the brain and the spinal cord. The baby has also developed ENDODERM which is the diigestive system, liver and lungs. Lastly the baby has developed MESODERM which is the muscles, blood and circulation. This little baby is just one inch long. http://en.wikipedia.org/wiki/Prenatal_development -
Fetal
Throughout the rest of the baby's uteris life, it
continues to develop its major organs to the way they are supposed to be. The baby begins growing faster and is considered a "fetus." http://www.tumblr.com/tagged/one%20direction%20fetus
