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Ovulation
Egg is released and ready for fertilization -
Conception
Egg is successfully fertilized by the sperm -
1st Month
Placenta develops, face and throat starts to develop, and blood cells begin taking shape. 1/4 inch long 1/30 ounce -
2nd Month
Ears start to form, central nervous system starts to form, and bone begins to form. 1 inch long 1/3 of an ounce -
3rd Month
Trimester-has hands, arms fingers, feet, and toes, reproductive organs are developing, and teeth are forming 3-4 inches long 1 ounce -
4th Month
Heartbeat is audible, eyelids, eyelashes, eyebrows, nails, and hair are formed, reproductive organs and genitals are fully developed, and nervous system is starting to function 6 inches long 4 ounces -
5th Month
Muscles are developing and skin is beginning to develop 10 inches long 1/2 a pound to 1 pound -
6th Month
2nd Trimester-finger and to prints have developed and baby responds to sounds 12 inches long 2 pounds -
7th Month
Hearing is fully developed, can respond to stimuli, and amniotic fluid begins to dissolve 14 inches long 2 to 4 pounds -
8th Month
Brain is rapidly developing, can see and hear, and most internal systems are developed except the lungs 18 inches long 5 pounds -
9th Month
3rd Trimester-Lungs are almost fully developed, can blink and turn his/her head, and responds to lights and sounds 18 to 20 inches 7 pounds -
Birth
Baby enters the wold by natural birth or by c-section 5-8 pounds 19-21 inches long
