Pre Natal Timeline

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    Pre Natal Timeline

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    1st month

    Baby-in-the-making is a ball of cells called a blastocyst. The blastocyst already contains a full set of DNA from you and your partner, which determines sex, eye color, and other traits.The ball of cells has officially become an embryo and is about the size of a poppy seed.
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    2nd month

    Baby's tiny heart begins to beat – at twice the rate of yours. Facial features (like eyes and nostrils) are beginning to form, and little buds appear where arms and legs will develop. Arms and legs are growing, and your baby now has little fingers, as well as a nose and upper lip.
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    3rd month

    Eyes have developed, though your baby's eyelids are fused shut for now. The embryo has become a fetus. His vital organs – such as kidneys, intestines, brain, and liver – are starting to function. Baby is almost fully formed. The bones are beginning to harden, and her genitalia are developing externally. Can hear baby's heartbeat at a prenatal checkup.(You may already have heard it at an early ultrasound.) The baby's just over 2 inches long and weighs about half an ounce.
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    4th month

    Baby's kidneys are producing urine, and he releases it into the amniotic fluid. He can make facial expressions and may have discovered thumb-sucking. The baby can see light that filters in from outside the womb, even though her eyelids are still shut. baby's sex may be detectable at your mid-pregnancy ultrasound, which typically happens between 16 and 20 weeks.
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    5th Month

    If you haven't felt your baby move yet, you probably will in the next few weeks. It'll take a couple of weeks longer for your partner and other people to feel your baby's movements from the outside. Your baby can hear your heartbeat and sounds that come from outside your body, such as your partner's voice. Your baby might even be startled by a loud noise.
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    6th month

    Your baby's sense of movement has developed, so he can feel the motion if you dance. His sense of hearing continues to improve. You may sometimes be able to see him squirming under the surface of your belly. Your baby's taste buds are developing. Her brain is growing very quickly, and her hair may be growing, too. She's almost a foot long and weighs just over a pound.
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    7th month

    Your baby's been doing "practice breathing" by inhaling and exhaling amniotic fluid, and if he was born now his lungs could function (with a lot of medical help). He can also open and close his eyes. Your baby may be dreaming. She has eyelashes, and her eyesight is improving. She weighs about 2 1/4 pounds and is about 15 inches long, head to heel.
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    8th month

    He's grown cute little fingernails and toenails. He's almost 17 inches long (head to heel) and weighs about 3 3/4 pounds. If your baby's born now, she's considered "late preterm." Healthy babies born at this stage usually do fine, though they need some care in the neonatal intensive care unit.
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    9th month

    Your baby is now considered full-term. His lungs should work fine if he's born now, but ideally he'll stay in your womb a bit longer. Your baby is due and fully ready for life outside the womb. The average weight of a newborn is about 7 1/2 pounds, and the average length is about 20 inches. If you go more than one or two weeks past your due date without delivering, your doctor may decide to induce labor.