Stages of Pregnancy

By Kyndra12

  • Conception

    Ovulation, Fertilization, Implantation

  • 1st Trimester: Week 1

    The mom is not actually Pregnant, the mother's last period is occuring.

  • Week 2

    The uterine beginning in preparation for pregnancy. Ovulation is occur.

  • Week 3

    The fertilization egg divide in hundreds of cells now called blastocyst, blastocyst begins implanting itself into the lining of the uterine.

  • Week 4

    Implantation has occurred, the embryo divides in one half sticks to the uterine wall and becomes the placenta.

  • Week 5

    The embryo will have developed a beating heart by the end of the week, and the symptom of missing period become evident.

  • Week 6

    The rapid embryo growth, physical sensations become pronounced such as morning sickness and food cravings.

  • Week 7

    The embryo starts developing the brain and face and more features begin to develop.

  • Week 8

    Now the embryo called fetus is about the size of a pumpkin, the body begins to form along with more physical features.

  • Week 9

    The mother starts to experience mood swings, the first fetal movements can be detected using an ultrasound.

  • Week 10

    In this week most of the organ and organs system have been developed and present in miniature form.

  • Week 11

    Marks the end of the embryonic period, hairs follicles of the skin are forming.

  • Week 12

    The symptoms in the mother such as morning sickness should be lessening and energy is increase.

  • Week 13

    The last week of the first trimester, the fetus can now flex its arms and move its legs.

  • 2nd Trimester: Week 14

    The fetus begins to develop a soft, fine hair all over its body. Mother's hormones are leveling thus less nausea, urination and exhaustion.

  • Week 15

    Fetus becoming more mobile and flexible and the mother can be experiencing abdominal pain, leaking breasts, skin changes, etc.

  • Week 16

    Fetus is approximately 4.3 to 4.6 inches long and begin moving inside the mother.

  • Week 17

    The rapid growth of the fetus begins to slow, the mother may have gained five to 10 lbs.

  • Week 18

    Mother should be able to feel the baby move and her abdomen make jerky movements.

  • Week 19

    The fetus is developing millions of motor neurons they are nerves that connect the muscles to the brain.

  • week 20

    Is the halfway point in the pregnancy and the mother should be feeling quickening movements.

  • Week 21

    Fetus becoming more active is able to swallow.

  • Week 22

    The fetus is completely covered with lanugo.

  • Week 23

    Fetus skin in wrinkled more translucent than before and pink to red in color.

  • Week 24

    The fetus is regularly sleeping and waking and the real hair is growing.

  • Week 25

    The fetus be able to respond to the familiar sounds by moving.

  • Week 26

    Lungs beginning to reproduce, this substance allows the air sacs in the lungs to inflate and keep them collapsing.

  • Week 27

    Marks the end of the second trimester, lungs and nervous system are continuing to mature.

  • Parental Care: Second Trimester Visits

    Check pressure, weight and how the baby is progressing by checking his heart and his movements.

  • 3rd Trimester: Week 28

    Fetus is gaining weight and smoothing out many of the wrinkles in the skin and now is approximately 10 inches long and 1/4 lbs.

  • Week 29

    The bones are full develop but they still soft.

  • Week 30

    Fetus has red blood cells which are now forming in the bone marrow.

  • Week 31

    Central nervous system matured to the stage control body temperature.

  • Week 32

    The body of the fetus starts absorbing vitals minerals. Although the lungs are not fully formed.

  • Week 33

    Fetus pupils can constrict, dilate and detect light entering their eyes.

  • Week 34

    Fingernails reached the fingertips. The vernix caseosa protest the skin.

  • Week 35

    Limbs are gaining thickness and the weight of the fetus rapidly approximately 1/2 lb per week next month.

  • Week 36

    Movements of the fetus need should be monitored.

  • Week 37

    Organs are ready to function on their own and fetus begin descending into the mother's pelvis.

  • Week 38

    The fetus begins developing a firm grasp. The fetus weighs is approximately about 6 1/2 lbs.

  • Week 39

    Week in which the fetus is full term and is becoming more prominent. The placenta supply the fetus with antibodies that help fight infection after birth.

  • Week 40

    The Due Date