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Fetal Development

By Lydiar08946
  • Week One: Your last menstrual period

    Week One: Your last menstrual period

    This week is the end of your mestrual period and is getting ready for ovulation.
  • Week Two: Fertilization

    Week Two: Fertilization

    Ovulation accuse and sprem meets the egg.
  • Week Three: Cells Join, Divide - New life begins

    Week Three: Cells Join, Divide - New life begins

    One eggs goes down to the fullopian tube.
  • Week Four: Implantation

    Week Four: Implantation

    When the egg is fertillized, it immediately begins dividing. Then travels down to the uterus.
  • Week Five: The embryonic stage begins

    Week Five: The embryonic stage begins

  • Week Six: The heart begins to beat

    Week Six: The heart begins to beat

    Its at the size of about a peanut but not fully developed. The heart is now starting to form.
  • Week Seven: Arms and legs begin to grow

    Week Seven: Arms and legs begin to grow

    The heart beat is in one chamber. The arms and leg buds start to grow.
  • Week Eight: Starts to practice moving

    Week Eight: Starts to practice moving

    The legs and arms are growing and the elbow and toes are visible.The feet and hand buds appear.
  • Week 9: Fingers and Toes form

    Week 9: Fingers and Toes form

    The fingers and toes are vetu define. The bones atart to form.
  • Week Ten: Embryo is now a Fetus

    Week Ten: Embryo is now a Fetus

    The developing organism is called a fetus.It is the size of a small strawberry.
  • Week Eleven: Neurons multiply

    Week Eleven: Neurons multiply

    The fingers and toes are fully seperated. the taste buds start to develope.
  • Week Twelve: Fingernails and toenails appear

    Week Twelve: Fingernails and toenails appear

    The fetus starts to move. the face begin to look like a baby face.
  • Week Thirteen: Baby flexes and kicks

    Week Thirteen: Baby flexes and kicks

    The movements can be measured. the chin and nose are well defined.
  • Week Fourteen: Hormones start up

    Week Fourteen: Hormones start up

    the ears are developed. the kindney produces urine.
  • Week Fifteen: Bones and muscles grow

    Week Fifteen: Bones and muscles grow

    the baby is now 4 inches. the finger and toenaila are visble.
  • Week Sixteen: Facial expressions are possible

    Week Sixteen: Facial expressions are possible

    The baby hears external voices and sleeps and dreams.
  • Week Seventeen: Fat accumulates

    Week Seventeen: Fat accumulates

    the mbilical cord is growing thicker and stronger. the retina is sentive to light.
  • Week Eighteen: Baby begins to hear

    Week Eighteen: Baby begins to hear

    may be startled by loud noises. the recongized rest active places.
  • Week Nineteen: Genitals recognizable

    Week Nineteen: Genitals recognizable

    the heartbeat can be captured on a ultrasound. you can tell wheither its a boy or girl.
  • Week Twenty: The halfway point

    Week Twenty: The halfway point

    the baby can notice its moms voice. the hair start growing.
  • Week Twenty One: Nourishment evolves

    Week Twenty One: Nourishment evolves

    Bone marrow has started making blood cells.Their small intestine is starting to absorb sugars.
  • Week Twenty Two: Taste buds develop

    Week Twenty Two: Taste buds develop

    Baby starts having a regular sleeping and waking rhythm.
    The mother's movements can wake her baby.
  • Week Twenty Three: Sense of balance develops

    Week Twenty Three: Sense of balance develops

    The child can successfully suck. Bones located in the middle ear harden.
  • Week Twenty Four: Practices breathing

    Week Twenty Four: Practices breathing

    The eyelids can be seen very clearly. If born at this stage is officially considered viable, they may well be able to survive.
  • Week Twenty Five: Exploration continues

    Week Twenty Five: Exploration continues

    Bones are becoming solid, hands are now fully developed. The brain is growing rapidly, the brain cells are starting to mature. The sexual organs are fully developed.
  • Week Twenty Six: Second trimester ends this week

    Week Twenty Six: Second trimester ends this week

    The feet are 2 inches (5cm) long. Hands are very active. The baby's eyes begin to open around this time.
  • Week Twenty Seven: Eyes can open

    Week Twenty Seven: Eyes can open

    Your baby's hearing continues to develop. The eyes can blink, open and close.
  • Week Twenty Eight: May recognize your voice

    Week Twenty Eight: May recognize your voice

    The hair on the head is now clearly visible. The milk teeth have developed under the gums. The eyes are starting to move in their sockets.
  • Week Twenty Nine: Movement is more forceful

    Week Twenty Nine: Movement is more forceful

    Baby's muscles and lungs are continuing to mature. The fetus can taste and respond to pain. The milk teeth have developed under the gums.
  • Week Thirty: Baby puts on pounds

    Week Thirty: Baby puts on pounds

    The wrinkled skin is becoming smoother now. In boys, the testicles have moved down to the groin. The baby controls its own body temperature.
  • Week Thirty One: Baby detects light

    Week Thirty One: Baby detects light

    The eyes have now completely opened and are responding to light and darkness. A loud noise near you may cause your little one to jump.
  • Week Thirty Two: Reproductive development continues

    Week Thirty Two: Reproductive development continues

    Under the skin the fat layer is getting thicker. The toenails and fingernails are completely formed. In boys, the testicles will be descending from the groin down into his scrotum.
  • Week Thirty Three: Lanugo is disappearing

    Week Thirty Three: Lanugo is disappearing

    The baby fuzz, lanugo, is disappearing. Your baby drinks about a pint of amniotic fluid a day. You may gain a pound a week (500g) for the rest of your pregnancy. Half of your weight gain will go directly to your baby.
  • Week Thirty Four: Rapid growth continues

    Week Thirty Four: Rapid growth continues

    Your child has now an excellent chance of survival outside the womb. Fat accumulations plumps up the arms and legs this week.
    Eyes opened when awake and closed when sleeping. The fingernails are now completely formed.
  • Week Thirty Five: Reflexes are coordinated

    Week Thirty Five: Reflexes are coordinated

    The body of your baby is growing round due to developing fat layers. Your baby's reflexes are coordinated. Lungs are almost fully developed. About 90% of babies born this week survive.
  • Week Thirty Six: Baby may drop into the birth canal

    Week Thirty Six: Baby may drop into the birth canal

    The baby's body is becoming chubby as fat layers build. Between now and birth they may gain about an ounce (30g) a day You may feel contractions of the womb, called Braxton Hicks contractions.
  • Week Thirty Seven: Pregnancy is considered 'at term'

    Week Thirty Seven: Pregnancy is considered 'at term'

    The water could break at any time. If it does happen, see a doctor immediately.
  • Week Thirty Eight: Development is complete

    Week Thirty Eight: Development is complete

    The wrinkled skin is becoming 'baby' smooth. The baby may have reached its final birth position. Most babies are born head first with only about 3 percent coming out feet first. About one in eight births are caesarean.
  • Week Thirty Nine: Very close now

    Week Thirty Nine: Very close now

    It will be cramped inside your uterus for much movement. Your baby will continue to punch and kick but lower in your abdomen, under your pelvis. The head is about 4 inches (10 cm) in diameter. Most of the baby's downy coating of lanugo has now disappeared.
  • Week Forty: Your due date arrives

    Week Forty: Your due date arrives

    Baby is about 20 inches (51cm) and weighs approximately 7.5 pounds (3.5 kg). The head has a diameter of about 4 inches (10 cm). The contractions could begin at any moment.