-
Week 6
Baby measures at 2-4mm or 0.08-0.16 inch, the size of a small lentil.
This week marks the beginning of the embryonic period.
Growth is rapid this week with your baby resembling a tadpole with a tail but no brain.
It is already 10,000 times larger than the fertilized egg; it doesn't have gender characteristics yet.
heart, the size of poppy seed, is beating on its own
Your baby at this stage has his own bloodstream with blood circulating already. -
Week 8
Baby measures at 1.4-2cm the size of a pinto bean.From week 8 your baby graduates from being an embryo to being a fetus.The rudiments of all the vital body parts are in place now - all the main internal organs are already present.
Baby now has the beginnings of a recognizably human face with nostrils, lips and a mouth with a tongue. Your baby is now covered with a thin layer of skin cells but is still translucent. Baby has already started moving around inside the uterus. -
Week 10
Baby measures at 3.1-4.2cm, the size and shape of medium shrimp.Now that the baby is starting to put on weight, your baby's weight is close to 5g or 0.18 oz.Most congenital malformations occur during the embryonic period.
By week 10 all of your baby's vital organs have formed.
The skeleton bones are starting to form; the eyes now looked closed since the lids are more developed.
Rapid brain development is taking place with almost 250,000 neurons being produced every minute! -
Week 14
baby measures 3-4 inches, and weighs about 1oz or 20g.
The reproductive site has the most action this week - for a boy baby the prostate gland is developing and the ovaries are descending from the abdomen to the pelvis for the girl baby.
Thyroid gland begins its function by producing hormones.
Your baby's skin is very thin; head hair and eyebrows are growing and may have pigment if baby has the genes for dark hair. Baby has begun to produce blood cells. The mother can only detect movement. -
week 18
Baby weighs slightly above 5oz. Fetus is the size of a soap bar. Your baby hiccups. Brown fat has begun to form under baby's skin - this acts as an insulator after birth when baby adapts to change from the uterus to the outside world. A good dose of amniotic fluid is being swallowed everyday by the fetus. At this stage baby is able to hear your heart beating, your stomach rumbling or movement of blood through the cord. -
week 22
Baby weighs about 13-16oz. Fetus is now the size of a grapefruit. Fingernails are almost fully grown. Her organ functions are more specialized. She now looks like a miniature newborn. your baby is experimenting with her newfound sense of touch. With a boy baby, the testes are beginning to descend from his abdomen this week. With a girl baby, the uterus and ovaries are now in place and her vagina is developed. -
Week 26
Baby weighs about 1½-2 pounds. Your baby's eyelashes and eyebrows are well formed now. Your baby still looks red and wrinkled but more fat is collecting under the skin with each passing day. All the components that make up the eyes have developed but her eyes won't probably open for another 2 weeks. This week marks a major milestone in hearing and vision. Your baby's hearing is completely formed and in a couple of weeks she will become more sensitive to sound. -
Week 30
Baby almost measures at 11 inches, and weighs about 2½-3 pounds. Your baby is now probably lying in a curled-up position. Movements are less; most babies adopt a head-down position.The most important organ, the brain continues to develop at a rapid pace. -
Week 32
Baby almost measures at 18 inches, and weighs about 4 pounds. Baby's foot or other body part can be felt around your ribcage from time to time. That's because baby is running out of room. Baby's kicks and movements may seem more muffled now because of the shortage of space. -
Week 40
At 40 weeks over 95% of babies are head-down in the uterus and will be born this way. The average weight of a newborn at term is about 3.4kg although anything between 2.5-4 kg is considered normal. From 37 or 38 weeks your baby may not have gained much weight. There is about one liter of amniotic fluid surrounding your baby, which at this point is milky in consistency due to the lanugo mixed in it.
