1. Healthy Living 7 Mrs. Scott
Pregnancy
Healthy Living 7
Mrs. Scott

2. Healthy Self
Outcome
Demonstrate an understanding of the stages of pregnancy and prenatal development.

3. Pregnancy Videos http://www.youtube.com/watch?v=gfgq7WiHbh4

4. Pregnancy Videos Cont…
(Delivery)

5. Fetal Development
There are 3 trimesters in pregnancy. Each trimester is three months in length.
Babies change from a grouping of cells to an embryo and finally to a fetus by the end of the first trimester.

6. Pregnancy Week 1

7. Pregnancy Week 2
Once the egg is fertilized, it will begin the journey to implant into the uterus.
All the DNA the baby needs to develop into a fully formed infant is already present.
The baby’s gender, hair colour eye colour are already determined!

8. Pregnancy Week 3 The baby is called a blastocyst.
It is a cluster of rapidly dividing cells.
The cluster will begin to form all the necessary organs the baby needs to survive.
The baby (blastocyst) will implant into the uterus.
By the end of week 3, the little baby will have made the change from a blastocyst to an embryo.

9. Pregnancy Week 4
The woman may begin to experience some early signs of pregnancy like nausea, fatigue and frequent urination.
The embryo will begin to form lung buds, skin and even arm and leg buds.
Circulation is well established and even parts of the eye are forming.

10. Pregnancy Week 5
The embryo may show the first signs of a beating heart.
The circulatory system is the first system to develop.
The embryo is beginning to show the signs of looking like a baby.
Arms and leg buds are continuing to grow and fingers are beginning to develop.

11. Pregnancy Week 6
The embryo is about one fourth of an inch long and swimming around inside of its fully formed amniotic sac.
The neural tube connecting the spinal cord to the brain will close.
The embryo’s internal skeleton is forming now and the brain in continuing to develop.
Brain waves are detectable at this point in the pregnancy.

12. Pregnancy Week 7 The embryo is half an inch long.
The embryo has almost complete brain formation.
Hands and feet resemble small flippers.
The embryo’s testes or ovaries are already formed, depending on whether the embryo is a girl or boy.

13. Pregnancy Week 8 The embryo is now a fetus!
Veins are very visible beneath the fetus’ skin and fingers and toes are forming.
The fetus is developing intestines – They are developing outside of the baby’s body and in the umbilical cord.
When the baby is big enough, the intestines will move inside the body where they belong.

14. Pregnancy Week 9
The fetus is probably about an inch long and its tail has all but disappeared.
Some fetuses have been shown to suck their small thumbs.
The fetus has begun to make facial grimaces and even swallowing motions.

15. Pregnancy Week 10 The baby’s brain is developing rapidly right now.
Well formed arms and legs as well as fingers and toes.
The baby will begin to kick his little feet and even open his/her mouth.
The baby’s intestines may begin to move into his/her body.

16. Pregnancy Week 11
Between week 10 and week 12, the fetus’ heartbeat can be heard with a hand held doppler.
The baby is completely developed with all the necessary major organs and systems he/she needs to survive.
From this point on the baby will mainly be growing and maturing.

17. Pregnancy Week 12
By the end of this week, the fetus may be up to 3 inches long and is very active.
Hair has begun to form on the fetus’ head and taste buds and vocal cords have begun to develop.
This is the end of the first trimester.

18. Pregnancy Week 13 This is the beginning of the second trimester.
The fetus looks like a tiny infant with fully formed limbs and fingers and toes.
The women’s body is also beginning to swell and grow as the baby begins to take up more and more space.
The uterus may even pop outside of the pelvic cavity a bit.

19. Pregnancy Week 14 The baby continues to grow and develop.
The fetus’ neck continues to get longer and the eyes move closer together.
The fetus is learning how to move his hands through the amniotic fluid.
Amazingly, his movements through the amniotic fluid may help influence how his/her fingerprints are formed.
Fingerprints are formed by a complex variety of changes to the finger pads during the first several months.
But both genetics and external circumstances may determine their final pattern… which is why no two fingerprints are ever the same.

20. Pregnancy Week 15
The fetus’ body is covered in a very fine hair known as lanugo which protects the skin.
During the 14th week, the baby’s bones are getting harder and muscles are developing more.
The fetus’ hearing is also getting better and may jump in response to loud noises.

21. Pregnancy Week 16
The gender of the baby can be determined at this point.
The baby may suck his/her thumb or grab the umbilical cord.
The fetus will be urinating and the fetus’ first stool (known as Meconium) has been forming in the intestines over the last few weeks.

22. Pregnancy Week 17 The fetus is almost 5 inches long.
The body is slowly catching up to the head size and the fetus no longer looks so top heavy.
The eyes are in their final position.
The fetus is almost finished developing both sets of their teeth buds.
The baby also begins to develop a protective skin sealant known as Vernix and brown fat stores begin to build up.

23. Pregnancy Week 18
The baby’s hearing is becoming better and better with each week.
The baby can now distinguish between the mom’s heartbeat and her voice.
The fetus will even respond negatively to a loud noise they don’t like.
The fetus’ eyes are becoming sensitive to light and the baby can make facial expressions like squinting and frowning.
An ultrasound during this week may show the baby hiccup.

24. Pregnancy Week 19
The fetus’ brain will be developing at a rapid rate during the next few weeks.
Millions of motor neurons are forming and nerve cells are developing to serve the senses.
The baby will continue to mimic the act of breathing by taking in amniotic fluid and swallowing.

25. Pregnancy Week 20 This is halfway through pregnancy.
The fetus is almost 6 inches long and 10 ounces.
Movements are easier to feel as the fetus jumps and kicks around inside.
A boy fetus’ testes will begin to drop into his scrotum during the next several weeks.
Hair will begin to grow on the baby’s scalp.
The baby’s legs are almost finished growing to their final length.

26. Pregnancy Week 21
The baby now has thin eyebrows and the hair on the fetus’ head continues to grow and develop.
The mother’s bone marrow will begin to make red blood cells for the fetus.
Up to this point, red blood cell production was mainly done by the baby’s liver and spleen.
Movements are getting more frequent and easier to feel.

27. Pregnancy Week 22
Taste buds are forming on the baby’s tongue this week and the baby is very capable of experiencing the sensation of touch.
The baby may begin to feel the world around him/her by grabbing fingers, umbilical cord and feet.
If the fetus is a girl then her body has already produced all the eggs her ovaries will contain throughout her entire life.

28. Pregnancy Week 23
Sometime during this week, the baby will begin to develop a special slippery substance known as surfactant.
This substance is crucial for breathing because it allows the small air sacs in the lungs (known as alveoli) to inflate and it prevents them from collapsing on themselves every time we exhale.
Fat production is also still developing and the fetus begins to look more and more like a newborn baby.

29. Pregnancy Week 24
Footprints and fingerprints are continuing to develop based on the movement of the fetus.
Every time the baby kicks or moves through the amniotic fluid, he/she is creating unique grooves in their feet and hands that will become their unique fingerprints.
Sometime during the next few weeks, the baby will also begin to get into a regular sleeping and waking cycle.

30. Pregnancy Week 25
Although the baby’s eyes are fully developed, they may still be fused shut.
Sometime over the next few weeks though, the baby will begin to open his eyes and look around.
The baby has eyelashes on his/her eyes and his/her eyebrows are now well formed.
The baby may weigh close to 2 pounds.

31. Pregnancy Week 26
The baby is now capable of maintaining balance and can even tell if he/she is right side up in the uterus.
If the baby started to open his/her eyes, he/she may begin blinking.
Brain waves are stronger this week.
The bronchial tract is further developed.

32. Pregnancy Week 27
This is the first week of the third and last trimester.
The baby is probably about 2 pounds and if the baby was born today, he/she would have an 85% chance of survival.
The baby has tripled or even quadrupled in length during the second trimester.

33. Pregnancy Week 28 The baby is starting to run out of room.
Over the next several weeks, the kicks and jumps will get a little less often as the baby begins to lose space.
The baby’s fine lanugo hair is beginning to disappear.
The baby’s muscle tone is improving weekly.

34. Pregnancy Week 29 The baby now weighs between 2 to 3 pounds.
The baby will kick to stretch his/her arms and legs.
The baby’s skin is less wrinkly.
The baby will begin to gain weight quite rapidly in preparation for birth.

35. Pregnancy Week 30
Until the baby is born, he/she will be gaining up to a half a pound a week. In the last few weeks, babies can gain almost a pound a week.
The mother can feel if the baby gets the hiccups.
These rhythmic movements often feel like small kicks at first, but they happen regularly.

36. Pregnancy Week 31
The baby weighs about 3 ½ pounds and is probably close to 17 inches long.
The baby starts dreaming!
Experts believe that babies in later stages of the second trimester and third have begun to dream, although exactly what they dream about will remain a mystery!
If the baby is a boy then the testicles may still be descending into his scrotum.
Fat stores are building up rapidly.

37. Pregnancy Week 32
The baby will start to move to the proper position (head down) if not already.
The mother will feel the baby kicking in the ribs when the baby is in position.
96% of babies are born head first.

38. Pregnancy Week 33 The baby is 4-5 pounds.
The baby will gain almost a third of his/her body weight in the next several weeks before delivery.
The fetus’ head is still very pliable and the skull bones are not joined at this point.
This is important because it allows the baby to squeeze the head through the narrow birth canal during delivery.

39. Pregnancy Week 34 The fetus’ immune system is getting stronger.
By the time the baby is born, he/she will be ready to fight illnesses on his/her own.
The baby is still moving slowly into position and is probably head down.

40. Pregnancy Week 35
The baby will begin to gain weight at the rate of ½ lb to ¾ lb a week.
Some of the baby’s features may be visible to the naked eye as the baby pushes feet or hands against the mother’s abdomen.
Some mothers have been able to count their baby’s toes.
Fat continues to build up which will help the baby maintain body temperature once the baby is born.
The soft hair that covered the baby’s body is now all gone.
A pasty white coating, called vernix, is at its thickest.

41. Pregnancy Week 36
The baby could weigh up to 6 pounds and be about 20 inches long.
The baby’s immune system continues to grow and mature.
The baby is receiving valuable antibodies from the mother during this week.
These antibodies will help the baby fight off infection when he/she is born.

42. Pregnancy Week 37
The mother is considered full term and if the baby is born this week, there is a good chance he/she will not need any special care.
The baby’s lungs are almost completely matured.
Everything the baby needs to survive outside the womb is now finished.
From here on out, it is simply a matter of weight gain.

43. Pregnancy Week 38
The pasty white vernix that coated the baby’s body is almost gone in preparation for birth.
The baby can turn his/her head towards light and sound.
The baby can blink and grimace.
While the baby’s bones are strong, his head will remain flexible in order to fit through the birth canal properly.

44. Pregnancy Week 39
The baby should weigh between 5 pounds 11 ounces and 9 pounds.
The baby will begin to move less and less due to space restriction.

45. Pregnancy Week 40
The baby is full term and ready to be born.