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If you mean, How many weeks of pregnancy before birth the answer is approximately 40 weeks from the last period or 38 weeks from conception. In humans the baby is considered full term any where from 38 weeks to 42 weeks from the last period. Each individual takes slightly longer or shorter to grow a baby. Nutrition, health, heredity, and the infant are all factors effecting hte length of pregnancy. No one can scientifically predict exactly when a baby will be born.

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15y ago

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