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Conception
Sperm makes its way into the Fallopian tube and burrow into the egg,The egg changes so that no other sperm can get in. -
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Period of the Zygote
[video](www.youtube.com/watch?v=qhrZj2RuNgQ)Period of the zygote begins at fertilization. The zygote travels down the fallopian tube and attaches itself to the wall of the uterus. -
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1st Trimester
videoThe fetus has all the organs including the heart that is already pumping. Bone formation has begun. And the sex of the baby can be edetermined. -
Week 5
The embryo grows from a tiny speck about 2mm - the size of a pin head, and the placenta is developing. -
Month 1
Embryo is Growing! By the end of your first 6 weeks of pregnancy, your baby has a head and trunk, and is about 1/4 inch long (8 mm) and weighs a fraction of an ounce (or a few grams).
MOther feels incredibly sleepy. Breasts might become tender and slightly larger by the fourth week. -
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Perid of the Embryo
videoDuring the embryonic period most of the organ systems are established and this with an enormous rapidity. Cell divisions, movement and differentiation are the basic processes taking place during this phase. -
Week 9
The embryo has grown to measure 30 mm (1.2 inches) in length, fingers and toes are well defined. Cartilage and bones begin to form and the main construction of the heart is complete. -
Month 2
By the end of the second month, all of your baby's major body organs and body systems have developed.
MOther might put on a little weight around the hips. A tiny bump may form around the stomach and waistline may increase. -
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Period of the Fetus
videoThe neural tube develops into the brain and spinal cord and neurons form. Sex organs begin to appear, the fetus continues to grow in both weight and length. -
Week 13
The fetus has grown to about 3 inches (8cm) long, the movements can be measured, and you may be able to tell if its a boy or a girl. -
Month 3
Your baby will be completely formed by the end of the third month. Your baby may have begun moving its hands, legs, and head and opening and closing its mouth.
MOther has a lot of blood is being pumped through the body, which means that your energy levels might be at an all time low. -
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2nd Trimester
videoThe head has hair, as do the eyebrows and eyelashes. Baby's heartbeat can be heard with a stethscope. -
Week 15
Baby is now over 4 inches (10cm) long weighs about 2.5 ounces (75 grams), He or she can move its arms and make a fist, and baby's skin is still very thin. -
Month 4
Eyebrows and eyelashes begin to appear in this month. Buds on the side of the head begin to form into the outer ear and he can hear your voice now. Head makes up about half of the baby's size. The baby's neck is long enough to lift the head from the body.
MOther might experience pain in the abdominal muscles because of it stretching to accommodate the baby. -
Week 20
Baby now weighes about 11 ounces and is roughly 7 inches long, the baby can hear and recognize the mother's voice and the baby;s heartbeat can be heard with a stethscope -
Month 5
Your baby is also growing muscle and is getting stronger every day.Fat is now being stored beneath your baby's skin.
Mothers weight is not overwhelming as yet and she can feel the baby moving. The skin on your belly is stretching. This might lead to tightening and itching. -
Week 26
The baby measures 14 inches long and weighs over 1.7 pound, and the baby's eyes bein to open. -
Month 6
At 24 weeks, your baby can suck his thumb and you may feel baby hiccup. He will have patterns of sleep and activity which you will come to know. His skin has lost its translucent appearance.
MOther's aerola (dark circles around the nipples) will get larger and darker. Her breasts grow larger consistently. It is likely that colostrum (a yellowish liquid) might leak from the breasts. -
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3rd Trimester
videoThe Baby's hearing is fully developed and he or she changes position frequently and responds to stimuli, including sound, pain, and light. -
Week 28
2.2 pounds weight and is 14.8 inches in length from head to heel, hair on the head is now clearly visible and milk teeth have developed. -
Month 7
Your baby's eyes can now open and close and can sense light changes. He or she can also make grasping motions and likes to suck its thumb.
Mother will also feel the urge to pee more often because of the pressure on your urinary tract. -
Week 35
The Baby is now about 18.5 inches in length and weighs over 5.5 pounds, the body of your baby is growing round due to developing fat layers, your baby's reflexes are coordinated and lungs are almost fully developed. -
Month 8
The face is now smooth and getting a little chubby, as baby is laying on fat stores over the next weeks in preparation for life outside the womb. Baby is now facing head down.
MOther may feel strain on your back leading to severe back pain. You may not be able to sleep properly because of the need to pee often. -
Birth
A baby has been born after 9 months of being in thewomb. -
Week 40
You have now reached the time of delivery, all systems are developed and ready to go, head is about 4 cm in diameter and the contractions will begin. -
Month 9
Baby is now fully formed. Baby will gain weight at the rate of about an ounce per day during the last month before the birth. Your baby is getting fatter and its skin is less rumpled. He or she is getting ready for birth and is settling into the fetal position
Mother feels nauseous, uneasy and lethargic. They might have terrible mood swings. They may keep crying incessantly, might feel depressed for no reason at all.
