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Conception
Sperm and egg combine -
month 0
conception -
Period: to
First Trimester (weeks 1-13)
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Period: to
Period of the Zygote
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Period: to
Period of the embryo
First month
Period of the Embryo covers the first 2weeks- 2months of pregnancy -
Month 1
changes in baby: size of a pinhead, heart the size of a poppyseed, egg attached to the uterus changes in mother: missed period -
Week 7
baby's head developes -
Week 8
babys eyes are visible -
month 2
changes in baby: embryo is 1in long, veins are visible, heart has divided into left and right chambers; face, eyeys, ears and limbs have developed
changes in mother: morning sickness, swelling of breasts, increased urination -
Week 9
baby's toes and fingers form -
Period: to
Period of the fetus
month 8
month 8 is part of the Period of the Fetus -
month 3
changes in baby: a little over 2in, baby has begun kicking and swallowing, all organs and muscles are formed and functioning
changes in mother: nausea, fatigue, abdomen becomes larger, weight gain may total 2-4 lbs, breasts become full/firmer, frequent urination -
Week 15
baby's skeleton developes bones -
month 4
changes in baby: heartbeat may be heard clearly, about 3in long, weighs about 1 oz, baby covered with a layer of thick downy hair called lanugo
changes in mother: abdomen grows, appetite increases, morning sickness gone -
Period: to
Second Trimester (weeks 14-26)
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Week 18
baby begins to hear -
month 5
changes in baby:6-7 in long, weighs 4-5 oz, protective coating called vernix caseosa forms on babys skin
changes in mother: slight fetal movements felt, enlarged abdomen is apparent, abdomen size changes posture -
Week 23
fingerprints and footprints form -
month 6
changes in baby: eyelids and eyebrows are visible, lungs are filled with amniotic fluid, if the mother talks or sings the baby can hear her, 8-10in long, weighs 8-12 oz
changes in mother: fetal movements are sensed as strong kcks thumps and bumps, weight gain may toatl 10-12 lbs -
Period: to
Third Trimester (weeks 27-40)
Month 9
last month of the third trimester -
Week 28
baby's eyes open -
month 7
changes in baby: weighs 1 1/2 to 2 lbs, 10-12in long, body is well formed, fingernails cover the fingertips
changes in mother: posture is affected by increased weight and size of abdomen -
Week 32
baby practices breathing -
month 8
changes in baby: gaining about 1/2 lb a week, turned head down in preperation for birth, weighs between 2 1/2 to 3 lbs, 14-16in long
changes in mother: backache, fatigue, shortness of breath, weight gain of 18-20 lbs, fetal kicks may disturb mothers rest -
Week 36
Rapid weight gain begins -
Due Date
Baby girl is born :) -
month 9
changes in baby: 5-6lbs, 17-18in long, too crowded for baby to move
changes in mother: false labor pains may be felt, total weight gain of 25-35 lbs, discomfort may continue, "lightening" may be felt as fetus drops into the pelvis and decreases pressure on the mother's organs
