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Childbirth refers to delivering a baby from its mother's uterus by means of contractions after gestation period ends at around 40 weeks.
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Contractions: The tightening and relaxing of uterine muscles during childbirth that help push the baby out.
Gestation Period: The time period between conception and birth when the baby grows and develops inside the mother's womb.
Birth Canal: The passage consisting of the uterus, cervix, vagina and vulva from which a baby exits during childbirth.