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Month 1
Brain and Spinal Cord Develop -
Conception
Egg & sperm unite. -
Week 7
Can't tell if a boy or a girl. -
Week 6
Heart is beating; organs are developing. -
Month 4
Bones begin forming. -
Month 5
Baby begins to hear. -
Week 3
Blastocyst attaches to the lining of the uterus. -
Week 9
Baby is 1" long; arms, hands, feet, and legs are developed. Also the eyes start moving. -
Week 10
Vital organs have formed; birth defects are unlikely to develop after this week. -
Week 14
Can tell if the fetus is a boy or a girl. -
Week 18
Can begin to feel baby's movement. -
Week 21
Fetus can hear sounds. -
Week 26
Fetus develops baby fat -
Week 28
Baby's eyes are beginning to open; can see. -
Week 32
Baby is 4 lbs, 11" long; lanugo is falling off. -
Week 36
Baby is in position for delivery.