Pregnancy Week by Week Fetal Development

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Week-by-Week Fetal Development

Week 22

Looks like your baby's movements are not coordinated with your own. When you are awake, he or she seems to be sleeping and vice-versa. Your child is completely disrupting your sleep pattern as he tries to form his own. Get used to it, as this is what you can expect for the first couple of months after birth.

If the vernix has not formed yet, it definitely should by now. As explained earlier, vernix is a cheesy substance that forms a protective covering over your child's skin. It is made up of skin cells mixed with the sebum from the sebaceous glands and adheres to the lanugo that is all over the skin.

As your baby is growing in the amniotic sac, which now also has a concentration of urine in the fluid, it needs some sort of protection for it's delicate skin. The vernix not only provides a protective covering but also serves to lubricate the passage along the birth canal to ease the delivery of the baby. Normally, most of the grease disappears before the baby appears, but still the baby is quite slippery at birth.

This week your baby measures eleven and a half inches or 29cm. and weighs one pound two ounces or 500g.

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