Se Habla Español
Hood River: 541-386-1050   The Dalles: 541-296-0650

Ultrasounds: Development of a Baby

Development of a Baby

Wonder what you baby looks like?

We happy offer referrals for ultrasounds in your area, call or come in today for more information. Click on the weeks below to see where your baby is at each developmental stage.

  • Week 1-3

    The baby has all of its inherited genetic characteristics at this point in the pregnancy. Eye color, hair color, skin, and body type have all been established. Fertilization and implantation have happened, and the baby now has 46 chromosomes (23 from you and 23 from your partner).

  • Week 4

    The baby is miniscule at this point, but important developments are already happening. This week, the embryo splits into two parts: the placenta, and the other half is now developing the neural tube (where the baby's brain, spinal cord, and backbone will form).

  • Week 5

    The baby's heart has started beating for the first time! Neither you or the doctor can tell at this point though. The embryo now has three layers: The outer ectoderm: Will form the nervous system, ears, eyes, inner ear and many connective tissues. The endoderm: Will grow into internal organs like the lungs, intestines, and bladder. The middle mesoderm: Eventually makes way for the heart and ciculatory system.

  • Week 6

    By the end of the week the baby will have tripled in size. The heart now beats at a regular rhythm, and the baby's brain hemispheres are forming (making recordable brain waves).

  • Week 7

    Week 7

    The baby is now developing distinct facial features. Dark spots mark the areas where the eyes and nostrils will be, and a mouth and ears are starting to form. The brain is growing more complex and nerve cells in the baby's brain are growing at an amazing rate (100,000 cells per minute!). The baby is now starting to move in small, jerky motions, although you won't feel these until about your fourth month of pregnancy.

  • Week 8

    Week 8

    The baby has now quadrupled in size. The facial features are becoming more defined with the ears, upper lip, and teeny tip of the nose clearly visable. The baby's eyelids are also forming this week.

  • Week 9

    Week 9

    Although you won't be able to tell the gender of the baby for another eight weeks, the baby is now forming its reproductive organs. At this point, the baby has doubled in size and the head (which is half the length of the entire body) is tucked down towards its chest. The baby's tiny fingers are growing longer and the ends are slightly bigger, which will allow for fingerprints to develop.

  • Week 10

    Week 10

    The baby's paddle-like (webbed) hands and feet are now seperating into fingers and toes. Bones are beginning to harden and the kidneys are now producing urine. At this point in the pregnancy, the baby's brain is forming 250,000 neurons every minute! The baby is now much less susceptible to development dangers at this point.

  • Week 11

    Week 11

    The baby can breathe underwater! The baby is now inhaling and exhaling small amounts of amniotic fluid, which is helping the baby's lungs grow and develop.

  • Week 12

    Week 12

    The baby's muscles are starting to bulk up now as the baby is keeping busy by stretching and kicking. If you put your hand on your belly, the baby will likely wiggle around in response because its reflexes are starting to develop. The baby is starting to open and close its fingers, curl its toes, and jerk and kick its arms and legs.

  • Week 13

    Week 13

    The baby's face is starting to normalize, with the ears and eyes moving into place. Now the baby's body is outgrowing the head, and the arms are now proportionate to the body. The baby is likely sucking its thumb at this point! By now, all of the baby's essential organs and systems have developed.

  • Week 14

    Week 14

    The baby's mouth is fully formed now and the baby is sucking constantly to help give it full cheeks.

  • Week 15

    Week 15

    Ultrafine hair now covers the baby's back, shoulders, ears, and forehead to help the baby retain body heat. Once the baby gains enough fat this hair will fall off. The baby's newest trick is facial expressions!

  • Week 16

    Week 16

    The baby's cartilage is hardening to bone, but the bones will remain somewhat flexible to enable an easier birth.

  • Week 17

    Week 17

    The baby's arms, legs, and body have now caught up to the size of its head. The baby starts fattening up this week as body fat is deposited under its skin and sweat glands develop.

  • Week 18

    Week 18

    Your baby can now hear all sorts of sounds! Go ahead and start singing, telling stories or playing music for the baby. Even though the baby doesn't understand these sounds, the baby will recognize your voice better than any other.

  • Week 19

    Week 19

    Vernix caseosa is now coating the skin, which helps regulate the baby's body temperature and protects its skin while its submerged in amniotic fluid. The baby's heartbeat is growing stronger and is about twice as fast as yours at this point.

  • Week 20

    Week 20

    The baby is starting to look more and more like Mom and Dad every day! Its well-developed limbs are curling, flexing, and kicking. Hair, nails and eyebrows are starting to sprout up.

  • Week 21

    Week 21

    Baby's stomach can how start absorbing energy-boosting nutrients from the amniotic fluid. Most of the baby's nourishment is still coming from the placenta though.

  • Week 22

    The baby's previously see-through skin is now becoming opaque. The baby is now fine-tuning its sense of touch and may experiment a bit by feeling its own face or anything else it can get its hands on.

  • Week 23

    Billions of the baby's brain cells are developing over the next couple of weeks. These control the baby's movements and sensory, and basic functions such as breathing.

  • Week 24-26

    Week 24-26

    The balance-controlling inner ear of the baby has developed and the baby can tell if it's upside down or right side up. Because of this, the baby mights start moving around a lot more for fun! The baby has also settled into a distinct sleeping pattern, and if you are lucky the baby will mimic yours!

  • Week 27

    The baby might be hiccuping a lot more at this point because its diaphragm is developing. These hiccups will likely cause your belly to jump a lot, which is fun to see and feel!

  • Week 28

    Until now, the baby's eyelids were fused shut, but now the baby will begin to open and close its eyes in the womb. The pigment in the baby's eyes is starting to appear as well, though it probably won't stay that color.

  • Week 29

    Now is the time to start noticing your baby's personality! The part of the baby's brain that is associated with intelligence and personality has become far more complex. If you pay attention, you might be able to notice how the baby reacts to different foods, sounds, and lights.

  • Week 30

    The baby is now gaining about half a pound each week. Now all major body systems are in place and functioning, and the baby needs the padding to protect and insulate its organs.

  • Week 31

    The baby is gaining more weight than height at this point, which means it has curled into the fetal position, which the baby will stay in until birth.

  • Week 32

    At this point, you are probably feeling very ready to have the baby! However, the baby's lungs still need more time to develop at this stage. Just be patient and your little one will be on its way!

  • Week 33-34

    The baby is fitting very tightly in the womb at this point. That being the case there will probably be less movement. If the baby is stimulated by your daily routine then you will probably get more activity.

  • Week 35-36

    The baby is now getting positioned to join the world! The baby's head should be positioned facing down toward the cervix and vagina.

  • Week 37

    The umbilical cord begins passing antibodies to the baby in preparation for delivery. The baby will be better prepared for any disease or germs it encounters outside the womb. The baby's sensing are also improving, and the baby can likely recognize your voice at this point. Eyesight is improving and finger coordination is developing to the point where the baby can grab its own face or toes.

  • Week 38-42

    The baby is just hanging out and enjoying the comfort of the womb. Any time now the baby is considered a full-term infant. The baby's brain is functioning better every day and can regulate breathing, digestion, and circulation. A baby can come to term anywhere between 38 to 42 weeks!

  • 1

Hood River Location

Phone: 541-386-1050

1936 12th St. #100

Hood River, OR 97031

Email Us

The Dalles Location

Phone: 541-296-0650

3206 West 6th Street

The Dalles, OR 97058


Email Us

Considering Abortion?

Learn about abortion procedures and the services we offer to help with your decision.

Hood River

Phone: 541-386-1050
1936 12th St. #100
Hood River, OR 97031

Mon & Tue   10 a.m. - 5 p.m.
Wed & Thurs   10 a.m. - 6 p.m.

Closed for lunch from 12pm to 1pm
Email Us

The Dalles

Phone: 541-296-0650
3206 West 6th Street
The Dalles, OR 97058

Tues & Wed   1 p.m. - 5 p.m.
Thurs & Fri   1 p.m. - 6 p.m.

Email Us