7 weeks - Facial features are visible, including a mouth and tongue. The eyes have a retina and lens. The major muscle system is developed, and the unborn child practices moving. The child has its own blood type, distinct from the mother's. These blood cells are produced by the liver now instead of the yolk sac.
Exciting! :) God, please continue knitting this baby! :D
Some other nice sites...
Pregnancy.org
Pregnancy & Birth
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