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a baby will be either a boy or a girl long before it becomes a fetus. A woman's egg carries an X chromosome (women are XX). However, since men are XY, a single sperm cell will carry either an X or Y chromosome. Depending on which sperm cell enters into the egg will result in either the a boy baby or a girl baby.

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14y ago

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If the heartbeat of fetus is very fast then it is boy or girl?

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