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size of a pin head
egg attaches to lining of uterus
critical stage for brain and spinal cord development
internal organs and circulatory system begin to form
the heart begins to beat -
Missed period
Other signs of pregnancy may not yet be noticeable. -
Breast begin to swell .
pressure on bladder from enlarging uterus results in need to urinate more frequently.
Possible nausea
fatigue is common -
1/4 inch (6cm) long as month begins.
Face,eyes,ears and limbs take shape.
bones begin to form. -
Size about 1 inch (25mm) long as month begins.
Nostrils,mouth,lips,teeth buds,and eyelids form.
Fingers and toes almost complete.
All organs present although immature. -
Breast become firmer and fuller may ache.
Nausea,fatigue, and frequent urination may continue.
abdomen becomes slighty larger. -
Abdomen continues to grow slowly.
Most discomforts of early pregnancy,such as morning sickness,usually gone.
Appetite increases. -
Size about 3 inches (7.6cm) long,1 ounce (28g) as month begins.
Can suck it's thumb,swallow,hiccup,and move around.
Faicial features become clearer -
Size about61/2-7 inches (16-18cm) long about 4-5 ounces as month begins.
Hair,eyelashes,and eyebrows appear.
Teeth continue to develop.
Organs are maturing.
Becomes more acitve -
Enlarged abdomen becomes apparent.
Slight fetal movements felt.
Increased size may begin to affect posture. -
Fat deposits under skin,but fetus appears wrinkled
Breathing movements begin. -
Fetal movementssensed as strong kicks,thumps,and bumps.
weight gain by the beginning of this month may total 10-12 pounds. -
Increased size may affect posture
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10-12 inches long about 11/2-2 pounds
Periods of activity followed by periods of rest and quiet. -
Weight gain continues rapidly.
May react to loud noises with a reflex jerking action.
Moves into head-down position. -
Discomfort may result fron=m increased size.Backache,leg cramps,shortness of breath, and fatigue are common.
Fetal kicks may disturb the mother's rest. -
Lightening felt as the fetus drops into the pelvis.Breathing becomes easier.
Other discomfortf may continue.
A total weight gain of 25-35 pounds is typical. -
Weight gain continues until week before birth.
skin becomes smooth as fat deposits continue.
Movements decrease as the fetus has less room to move around.
Acquires disease as the fetus has less room to move around.