Conception -1 mo. |
Week 2-Conception
is the moment at which the sperm penetrates the ovum. Once fertilized it
is called a zygote, until it reaches the uterus 3-4 days later.
Week 4-The embryo may float freely in the uterus for about 48 hours
before implanting. Upon implantation, complex connections between the
mother and embryo develop to form the placenta.
The heart starts beating
Eyes start to develop
The brain, spinal cord, and nervous system begin to develop.
Arms and legs begin to grow
Blood flows in veins |
1 month -
2 months |
Week 6-The embryo
is about 1/5 of an inch in length. A primitive
heart is beating. Head, mouth, liver, and intestines begin to take
shape.
Mouth, ears, and nose take shape
Pituitary gland forms
Skeleton is formed
Reflex responses have begun
Brain coordinates movements of muscles and organs
Penis forms on males
Brain waves can be recorded
Lips are sensitive to touch
Ears may resemble a family pattern
Has every organ present
Is 1 1/8 inches long and weighs about 1 gram |
2 months -
3 months |
Week 10-The embryo
is now about 1 inch in length. Facial features, limbs, hands feet
fingers and toes become apparent. The nervous system is responsive and
many of the internal organs begin to function
Fingerprints start to form on fingers
Eyelids, palms, and hands are sensitive to touch
Child will bend fingers around an object placed in the palm
Thumb sucking may occur
Fingernails start to form
Squints, swallows, and frowns
Body is sensitive to touch
Begins to urinate
Makes complex facial expressions and even smiles
Can kick, turn feet, curl and fan toes
Can make a fist, move thumbs, bend wrists
Can turn head, open mouth, and press lips tightly together
Practices breathing
Feels pain |
3 months -
4 months |
Week 14-The fetus is now 3 inches long and weighs almost an ounce. The
muscles begin to develop and sex organs form. Eyelids, fingernails, and
toenails also form. The child's spontaneous movements can be observed.
Face becomes prettier
Facial expressions resemble parents
Movements are graceful
Reflexes are vigorous
Vocal cords are formed
Sex organs are apparent |
4 months -
5 months |
Week 18-The fetus
is now about 5 inches long. The child blinks, grasps, and moves her
mouth. Hair grows on the head and body.
Child can grasp with hands
Swim and turn somersaults
Mother feels babies movements (baby punches and kicks) |
5 months -
6 months |
Week 22-The fetus
now weighs approximately 1/2 a pound and spans
about 10 inches from head to toe. Sweat glands develop, and the external
skin has turned from transparent to opaque.
Sleeping habits appear, but a loud noise with
provoke activity
Child responds to sound frequencies to high or low for adults to hear |
6 months -
7 months |
Week 26-The fetus
can now inhale, exhale and even cry. Eyes have completely formed, and
the tongue has developed taste buds. Under intensive medical care the
fetus has a over a 50% chance of surviving outside the womb.
Fine hair grows on eyebrows and head
Eyelash fringe appears
Weight is about 1lb 6 oz
Height is about 9 inches
Babies can be born at this age and survive |
7 months -
8 months |
Week 30-The fetus
is usually capable of living outside the womb and would be considered
premature at birth.
Eye teeth are present
Eyelids open and close
Eyes look around
Hands grip strongly
Mothers voice is heard and recognized |
8 months-
9 months |
Week 40-This marks
the end of the normal gestational period. The child is now ready to live
in outside of his mother's womb.
Weight increases by 2 lbs and the baby's quarters
get cramped
At 9 months child triggers labor and birth occurs |
