Fetal Development by Allison Brown

By brownar
  • Date of Last Menstural Period

    Date of Last Menstural Period
    Every month after puberty, females go through the menstural cycle. The first few days of the cycle are when the body is building up new and fresh tissue to sustain life. The next few days are when an egg is released from an ovary and it can be fertilized. Throughout the rest of the month the body will then shed that layer of the uterus and this is known as the womens "period".
  • Period: to

    The gestational period

  • Proliferative phase

    Proliferative phase
    This is a phase of about 13 days where the uterus is rebuilding from being shed and is getting ready to have an egg implanted into it. The lining of the uterus in this time is rebuilding to be full of nutrients.
  • Ovulation

    This is the day that ovulation takes place. It takes place at a different time in different women, but usually it takes place between days 13-16 in the menstural cycle. Ovulation is when a woman releases an egg from an ovary to be fertilized.
  • 2 weeks pregnant- Conception!

    2 weeks pregnant- Conception!
    The baby is Concieved! Doctors start counting pregnancy from the first day of your last period, so at conception you're considered 2 weeks along.
  • Implantation

    Implantation is the attachment of the fertilized egg or blastocyst to the wall of the uterus at the start of pregnancy.he placenta begins forming at the point of implantation, which is about 8 days after the point of conception. Nutrient exchange between mother and fetus begins at this time, though the circulation of the placenta does not fully develop until the end of the first trimester.
  • One Month

    One Month
    The baby is about 0.63 of an inch long and is 0.04 ounces in weight.
  • Month Two

    Month Two
    The baby is 2.13 inches long. The fetus also wights about 0.49 of an ounce.
  • 10 Weeks Pregnant

    10 Weeks Pregnant
    When the mother goes to the doctor's office she should be able to hear the baby's heartbeat. The baby is a little over an inch long, and weighs less than a quarter of an ounce. The Vital organs; including his kidneys, intestines, brain, and liver are in place and starting to function even though they will continue to develop throughout pregnancy. The outline of the baby's spine should be visible through the skin, and the spinal nerves are beginning to stretch out from his spinal cord.
  • End of First Trimester/ Start of Second Trimester

    This day marks the end of the first trimester, and the beginning of the second trimester.
  • Month Three

    Month Three
    The fetus is about 4.57 inches long at the three month period. It also weighs somewehere around 3.53 ounces.
  • 15 Weeks Pregnant

    15 Weeks Pregnant
    The baby now measures about 4 inches long, and weighs about 2 1/2 ounces. The baby is about the size of an apple. The baby is now moving amniotic fluid through its nose and upper respiratory tract. This helps the air sacs in her lungs begin to develop. The baby's legs are growing longer than the arms now, and it can move all of it's joints and limbs. The baby is forming tastebuds during this week, and this is also the first week that you will be able to tell the sex of the baby.
  • Month 4

    Month 4
    During the fourth month, the fetus measures around 6.46 inches. The fetus also weighs around 10.58 ounces.
  • 19 Weeks Pregnant

    19 Weeks Pregnant
    The brain is designating specialized areas for smell, taste, hearing, vision, and touch. The baby should be able to hear the mother talking starting this week on pregnancy. The baby weighs about 8 1/2 ounces and measures 6 inches long. The arms and legs are in the right proportions to each other and the rest of the body now. The kidneys continue to make urine and the hair all over the body is form. A waxy protective coating called the vernix caseosa is forming on the skin to protect it.
  • The Fifth Month

    The Fifth Month
    At this point the fetus is 14.02 inches long and weighs 1.68 pounds.
  • Second Trimester ends/ Third Trimester starts

    This is the end of the second trimester, and the start of the third trimester.
  • The Sixth Month

    The Sixth Month
    The fetus now measures 15.71 inches and weighs 2.91 pounds.
  • The Seventh Month

    The Seventh Month
    At this point in the pregnancy the baby is 17.72 inches long and is 4.73 pounds. This last couple of months are when the baby really puts on most of the weight.
  • Premature Labor

    Premature Labor
    At 37 weeks a baby can be born prematurely and still have a good chance to survive.
  • The end of the Eighth Month and the start of the Nineth Month!

    The baby is now 19.61 inches long and weighs 6.80 pounds.
  • The baby is due!!

    When the baby is born, it should be around 20.16 inches long and 7.63 pounds. It is very rare for a baby to be born on the due date, but it is possible. If you are a first time mother then you might even be waiting for up to two more weeks!
  • First stage of Labor

    First stage of Labor
    The first stage of labor is the time until the cerbix is completley dilated to 10 cm.The first stage of labor is probably the longest of the three stages and it involves three phases.
    Early labor phase: The time of the onset of labor until the cervix is dilated to 3 cm.
    Active labor phase: Continues from 3 cm. until the cervix is dilated to 7 cm.
    Transition phase: Continues from 7 cm. until the cervix is fully dilated to 10 cm
  • Second Stage of Labor

    Second Stage of Labor
    The period after the cervix is dilated to 10 cm until the baby is delivered is the second stage. The second stage of childbirth involves pushing and the delivery of the baby. Until this point the womens body has been doing all the work, but now that the cervix has fully dilated to 10 cm it is the woman's time to help by pushing.
  • Third Stage of Labor

    Third Stage of Labor
    The third stage is the delivery of the placenta, and occurs after the baby is born. This stage is usually the shortest of the three stages. The time it takes to deliver the placenta can range from 5 to 30 minutes.
  • Newborn baby!

    Newborn baby!
    The baby is born and does not have the ability to protect itself from the outside world. The baby's immune system is not yet functioning so this is why it is important for the baby's mother to breastfeed and pass antibodies down.