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Pregnancy Week 21

In the twenty-first week, your baby begins to show greater movement.

The ability to swallow develops and the baby is poised to start gaining weight.

Red blood cells begin to be produced in the bone marrow, which will become the major site of blood cell production in the third trimester and after birth.

The spleen will stop producing blood cells at around week 30 and the liver around week 37.

You may begin to really start to feel your baby move.

Slim women may feel the movement a little earlier.