The unborn child at 7-8 weeks from conception.
Conception/Fertilization: A new, unique human life begins when sperm and ovum join to form a single cell.
Implantation: On about the sixth day, the growing child attaches to the wall of the mother's uterus and begins sending out the "all systems go" chemical signal that can be detected in a home pregnancy test. Before the second week is over, the cells of the child's small body will have already begun segregating themselves into the layers which will give rise to the brain, nervous system, skin, digestive system, muscles, bones, and circulatory system.
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The unborn child at 7-8 weeks from conception. |
3-4 Weeks: The baby's heart begins its first halting beats as early as 18 days after fertilization, often before the mother even suspects she is pregnant. The child develops rapidly at this time. The baby's head and spinal column become distinguishable and arm buds appear. Legs begin to appear just days later.
6 Weeks: Fingers are forming and the child's mouth and lips are apparent. Brainwaves can be measured on an EEG. The child begins moving.
10-11 Weeks: The baby has eyelids, fingernails, and fingerprints. All organ systems are in place and active.
12 Weeks: Though still too small to be felt by the mother, the baby reaches his or her peak frequency of movement during the third month. The child's sex can be visually determined, while the child's eyes, ears, and face begin to display distinctive characteristics, to the point that family resemblances may be apparent.