Pregnancy Week By Week
by Beverley Brooke

Continued

Week 18: By mid week your baby's eyes and ears will now be in the right places. The finger tips and toes will develop pads, and toe and finger prints will start to develop later in the week. Myelinization, a process of coating the nerves with a fatty substance called myelin which speeds up nerve cell transmission and insulates nerves, will start happening this week. Also by the second day of this week meconium (faecal waste) will start developing in the baby's bowels.

Week 19: A creamy looking substance that covers the baby's body, vernix coseosa, will start to form. This protects the baby and its developing glands and sensory cells. If you're having a baby girl primitive egg cells are now developed in the ovaries, in fact females are born with all the eggs
their ovaries will ever have.

Week 20: Most of the major development has now taken place, and the danger zone of the first three months is now over. Your baby will be waking and sleeping, just as newborns do. Also the formation of fine scalp hair and eyebrows will begin.

Week 21: Your body is replacing the amniotic fluid very three hours at this stage of your pregnancy. Baby's leg and arm movements increase as the muscles and bones become stronger. By the end of the week a stethoscope will be able to detect the baby's heart beat.

Week 22: If the baby is a boy, the testes will start to move from the pelvic area into the scrotum. The hair on the head and eyebrows is now visible as white and short.

Week 23: The bones in the middle ear start hardening making the conduction of sound possible. The baby will start to gain some considerable weight between now and next month.
The size of the baby's body will start to get into
proportion though the head will remain larger than the rest of the body.

Week 24: The skin of your baby is wrinkled, but will smooth out as fat is deposited. Also by the end of this week the baby's heart beat is so strong it is some times possible to hear it by placing an ear on your stomach.

Week 25: Baby's skin is now turning a reddish/pink as capillaries start to develop. The nostrils will now start to open, as they have been plugged unto now. The lungs will start developing blood vessels and the finger and toe nails will now be covering half the nail bed.

Week 26: with the nostrils now open, muscular breathing will start. By the end of the week the lungs will be secreting surfactant, a substance which prevents the lung tissue sticking together. Also with the formation of blood vessels in the lungs, they will now also be developing air sacks. Brain wave activity starts this week for auditory
and visual activity.

Week 27: Bumping and thumping is becoming stronger as your baby grows stronger, you should be feeling around 10 kicks in a two hour period. Baby's lungs are growing rapidly and there is continual development with brain patterns.

Week 28: This is when the eyelids un-fuse and open up. Muscle tone is improving, and the lungs are capable of breathing air. The chances of a baby being born premature from now on, has a greatly improved chance of surviving.

Week 29: Eye lashes have now grown, and although still unable to focus, baby's eyes are now sensitive to dark and light. At this stage of pregnancy the senses of sound, smell and taste are developing. By the end of the week your baby will be able to move its eyes in their sockets.

Week 30: Baby is now storing up nutrients taken in by you. Calcium for skeletal development, protein for growth and iron for blood cells. By the end of the week the languno (the small hairs that covered the baby's body), is nearly all gone apart from some patches on the shoulders and back.

Week 31: As the actual growth starts to slow down, the internal organs are still maturing, so make sure your still getting enough folic acid, iron and calcium. Should your baby be born this week they would have the ability to breath, see, listen learn and remember.

Week 32: The baby's iris is now reacting to light. All five senses are now registering with your baby, although smell is limited as baby can't breathe air in the uterus.

Week 33: your baby may now be sucking its fingers. Constipation could be starting for you as your uterus puts more and more pressure on your bowels.

Week 34: The pigment of the eyes is not quite fully developed yet, this leaves the eyes looking blue regardless of final colour. And this week your baby will start to develop its own immune system.

Week 35: In baby boys the decent of the testes will complete any time now. Your baby may now shift into your pelvis in a head down position, but not all babies' do this before birth.

Week 36: Dimples on the elbows and knees will be forming as well as creases in the neck area due to continual deposits of fat. Also this fat will help baby maintain its body temperature.

Week 37: Around 85% are born within two weeks of their actual due date (either before or after), so as you enter this stage be aware for signs of labour. The baby is practising being more aware of its surroundings; this is the `orientating response'. This is where the baby will turn towards any source of light. The end of this week marks the end of development, growth will now slow down.

Week 38: Meconium is accumulating in the intestines. Meconium is a dark green mass of waste product and cells from the gall bladder, liver and pancreas. Although shortly after birth this will all come out.

Week 39: as the baby is settling into your pelvis, you maybe feeling clumsy and off balance. This is because your centre of gravity shifts. Make sure you're prepared for your trip to the hospital.

Week 40: welcome to the final week, that's if you have not given birth already. Your body will be giving the baby antibodies so it can protect its self from many diseases. The baby will finish dropping into its resting place before birth. So congratulations and welcome to your new born child.

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Article by Beverley Brooke
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