-
week 24
- pinkish-red skin -lung development -regular sleep and wake patterns
- baby is about 8 inches and 11 pounds
-
week 7-8
-brain and face begin growing
-lungs
-lips and nose
-all major organs are developing
-baby is about 1/2 inches -
week 20-21
- baby begins to hear
- the digestive system works
- vernix cases cover baby
-
week 22
-regular sleep patterns
- all organs and structures form
- breathing movements accrue
- may begin to suck thumb
- baby is about 6 1/3 inches and about 11 ounces -
week 12
- fingernails start to grow -more defined profiles -about 2 1/2 inches in length and weighs about 1/2 ounces
-
week 1-2
no development -
week 3-4
-conception
-rapid cell division
-zygote turned into a blastocyst and travelled down fallopian tubes.
-blastocyst implants in the uterus lining during week 4 and becomes the embryo -
week 5 - 6
-neural tube closes
-development of head and trunk
-arm and leg limb buds appear
-brain and ears begin to form
- heart continues to develop -
week 10
-baby's head is half the size of the baby
-all body parts are present
-baby is 1 1/4 inches long -
week 16
-baby is moving mother cant feel it
- baby is 4 1/2 ich and about 4 ounces -
week 28 - 29
- eyes and begin to open and close
- central nerves
-
week 31-32
- finishes most major development -rapid weight gain
- baby 11 inches
-
week 34
-continues to grow fingernails
-developing breathing motions
-responds to light
- skin pink and smooth
-baby is about 12 inches -
second trimester week 14
-baby's sex will become apparent
-baby can pee and swallow
-baby is about 31/2 inches in length