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Prenatal/Fetal Development
Month by Month
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FIRST TRIMSTER
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Day 1: Conception . . . Sperm fertilizes egg
Day 7: Implants into the wall of the Uterus Day 18: Heart begins to beat Month 1 By the end of the first month, the embryo is about 1/10 of an inch long. The heart, which is no larger than a poppy seed, has begun beating.
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First Month
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Month 2 The embryo is about 1 inch long and has distinct, slightly webbed fingers. Veins are clearly visible. The heart has divided into right and left chambers.
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Two Months
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Month 3 Now called a FETUS
By now the fetus is 2 1/2 to 3 inches long and is fully formed. They have begun swallowing and kicking. All organs and muscles have formed and are beginning to function.
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End of FIRST TRIMSTER and beginning of SECOND TRIMESTER
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Month 4 The fetus is covered with a layer of thick, downy hair called lanugo. The heartbeat can be heard clearly. They are moving around but can not be felt You can find out the gender of the baby at this time
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4 months
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Month 5 A protective coating called vernix caseosa begins to form on baby's skin. By the end of this month, the fetus will be nearly 8 inches long and weigh almost a pound. THIS IS WHEN YOU MAY BEGIN TO FEEL THE BABY KICKING!
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Month 6 Eyebrows and eyelids are visible. Your baby's lungs are filled with amniotic fluid, and he has started breathing motions. If you talk or sing, he can hear you.
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6 Months
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End of SECOND TRIMSTER and beginning of THIRD TRIMESTER
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Month 7 By the end of the seventh month, your baby weighs about 3 1/2 pounds and is about 12 inches long. The body is well-formed. Fingernails are present
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7 Months
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Month 8 Your baby is gaining about half a pound per week, and layers of fat are piling on. They have probably turned to a head down position in preparation for birth. Weight is now between 4 and 6 pounds.
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8 months
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Nine Months Your baby is a hefty 6 to 9 pounds and measures between 19 and 22 inches. As they become more crowded, you may feel them move around less. Lungs are finishing maturing
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Full Term Pregnancy = weeks Pre Term = anything before 37 weeks Survival rates for babies born really early By 24 weeks or 6 months 56% of babies will survive By 25 weeks - just one week later it increases to 79% survival rate
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Measurements: Use a ruler and draw a line for how long the embryo is at each month: For some you may need to go the other direction or make two lines.
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In The Womb
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Alexander Tsiaras: Conception to birth -- visualized – YouTube (9
Alexander Tsiaras: Conception to birth -- visualized – YouTube (9.30min- but show at 2 min- birth)
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