3.5 Fetal Development Timeline

  • Week 1

    You're actually not pregnant yet—the clock starts ticking from the first day of your last period.A increase in the amount of estrogen and progesterone coursing through your bloodstream prompted your uterus to form a lush, blood-rich lining of tissue to support a potential fertilized egg.
  • Week 2 : Ovulation

    You're not pregnant yet, but you may be about to release an egg that could grow into a baby if it's fertilized by your partner's sperm.
  • Week 3 : Possible Pregnancy

    You may be pregnant but probably won't have any symptoms.
    A test from your local OB/GYN will confirm the pregnancy.
  • 1st Month You're Pregnant !

    You will need to get tested before you can confirm your pregnant. You may be starting to feel bloated, crampy, tired and moody, and experiencing sore breasts, nausea/vomiting and a frequent need to pee.
  • Week 6

    Though the embryo is only about the size of a grain of sand, the heart is pumping blood, most other organs have begun to develop, and arm and leg buds appear. Nose, mouth, and ears have began to take shape.
  • Week 8

    The embryo doubles in size but is still less than a half-inch long. As your pregnancy hormones increase, morning sickness may be worsening. .Your doctor may look or listen for the baby's heartbeat with an ultrasound. Once you see or hear it, your miscarriage risk drops to about 2 percent. He'll also give you an official due date—though very few women actually deliver on that day.
  • Week 10

    Your inch-long baby is now called a fetus. All Organs have started to develop.
  • Week 12 : 1st Trimester

    This week, nearly all of the fetus's organs are beginning to function, and genitals begin to take on male or female form.Your uterus has begun to expand outside the protective pelvic bones.This is also the 3rd Month of being pregnant .
  • Week 14 : 2nd Trimester

    The next 14 weeks to come you can gain up to 14 pounds. You may feel more engergentic.
  • Week 16

    You may Start to feel the baby move around .
  • Week 18

    As the baby continues to grow and puts pressure on your bladder ; peeing will be come more often.
  • Week 20 : Halfway point

    The Feuts has racesed your navel
  • Week 22

    At 11 inches and almost 1 poundyour baby is starting to look like a miniature newborn. His lips, eyelids, and eyebrows are becoming more distinct
  • Week 24

    Blood vessels in her lungs are developing to prepare for breathing, and the sounds that your baby's increasingly keen ears pick up are preparing her for entry into the outside world. Loud noises that become familiar nowbrain is also growing quickly now, and his taste buds are Developing.
  • Week 26

    The network of nerves in your baby's ears is better developed and more sensitive than beforeHe's inhaling and exhaling small amounts of amniotic fluid, which is essential for the development of his lungs. the baby is now 14 inches long.
  • Week 28

    With more brain tissue developing, your baby's brain is very active now. The baby weighs about 2 1/4 pounds. The baby eyesight is now developing
  • Week 30

    Baby's muscles and lungs are continuing to mature, and his head is growing bigger to make room for his developing brain. Eyesights continues to develop .
  • Week 32

    Baby now has toenails, fingernails, and real hair. Skin is becoming soft and smooth as it plumps up in preparation for birth.
  • Week 34

    Baby's central nervous system is maturing, and her lungs are continuing to mature as well. The baby weighs about 4 3/4 pounds.
  • Week 36

    The kidneys are fully developed now, and his liver can process some waste products. Shedding most of the downy covering of hair that covered its body, the baby swallows both of these substances, along with other secretions, resulting in a blackish mixture called meconium that will form the contents of her first bowel movements.
  • Week 38

    Weighs about 6.8 pounds and is over 19 1/2 inches long. The Organs have fully matured.
  • Week 40

    The skull bones are not yet fused, which allows them to overlap a bit if it's a snug fit through the birth canal during labor.The baby is full term at 39 weeks, but most baby are born around The 40th week. If you past 2 weeks after your due date you have to have a c-section for the baby.