Fetal Development Timeline

Timeline created by TheRussianCow5
  • Week 6

    Week 6
    baby's jaw, cheeks, chin, eyes, ears, and nose are beginning to form what will eventually become one adorable face.
  • Week 9

    Week 9
    baby, now the size of a green olive, has grown about an inch since last week. Tiny muscles are beginning to form, so while he might not be ready to pump iron, he's gearing up to move his arms and legs.
  • week 12

    baby may be making a sucking movement with his or her mouth as early as this week. little one's mouth can open and close at this point in gestation
  • week 16

    week 16
    baby now weighs in at a whopping three to five ounces, and he's four to five inches in length. The bones that are now in place in his ears means he can probably hear your voice as you talk to your partner and pals and sing in the car.
  • week 19

    week 19
    about a half pound in weight and six inches long and a substance called vernix caseosa. This greasy white stuff covers your baby's skin, protecting it from the surrounding amniotic fluid. Without it, she'd look totally wrinkled as she entered the world.
  • Week 23

    Week 23
    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.
  • week 27

    week 27
    your baby weighs almost 2 pounds (like a head of cauliflower) and is about 14.4 inches long with his legs extended
  • week 31

    week 31
    baby measures over 16 inches long. He weighs about 3.3 pounds
  • week 34

    week 34
    baby now weighs about 4 3/4 pounds (like your average cantaloupe) and is almost 18 inches long. Her fat layers which will help regulate her body temperature once she's born are filling her out, making her rounder.
  • week

    baby has really plumped up. She weighs about 6.8 pounds and she's over 19 1/2 inches long (like a leek). She has a firm grasp, which you'll soon be able to test when you hold her hand for the first time!