Pregnancy Week by Week Fetal Development

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Week-by-Week Fetal Development

Week 21

If your baby is a girl, her internal reproductive organs, the womb and the vagina will have formed by now. Whatever the child's sex, the legs will have finally grown in proportion to the body and will be moving in graceful coordination. The tongue is also fully formed and the skin is not transparent anymore.

The white blood cells are under production right now, to help fight infections and diseases by increasing the powers of resistance and the skin has now turned opaque.

This week your baby measures about eleven inches or 27.5cm. and weighs around one pound or 450g.

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