1. 1st Trimester of Pregnancy

2. MAJOR developmental of organs begins during this trimester
1st 3 months or 12 weeks
Most couples will not announce their pregnancy until after this trimester- due to miscarriage odds
MAJOR developmental of organs begins during this trimester
1st Trimester

3. Stage
Time Span
Occurring
Zygote
Conception- 2 weeks
Implants in uterus, cell division
Blastocyst
Between Zygote and Embryo stage
Zygote cells are dividing, results in 2 groups of cells- baby and amniotic fluids
Embryo
3 weeks- 8 weeks
Major systems of body form; brain begins to control body systems
Fetus
8 weeks- birth
Development of body systems until baby can be independent; growth; weight gain
What is the baby called?
*All stages are occurring in this 1st Trimester*

4. First Month The zygote is about the size of a pin head.
The heart, which is no larger than a poppy seed, has begun beating.
Egg has attached itself to the lining of the uterus.
Changes into embryo at the end of 2 weeks

5. First Month

6. Changes in the Mom’s body
Nausea
Fatigue
Backaches
Mood Swings
Enlarging Breasts
Frequent Urination
Weight Gain (2-5 pounds)
Headaches
Changes in the Mom’s body

7. The embryo is about 1/4 inch long and has distinct, slightly webbed fingers.
Face, eyes, ears, and limb have developed. Veins are clearly visible. The heart has divided into right and left chambers.
Changes into an fetus at the end of eight weeks.

8. Two Months

9. Three Months
By now the fetus is 1 inch long and is fully formed. He has begun swallowing and kicking. All organs and muscles have formed and are beginning to function.
Heart beat can be heard with stethoscope.

10. Doctor’s Visit What to expect Physical Exam
They will ask about health history
Pelvic Exam (Pap test)
Lab test
Urine sample
Ultra Sound (must be at least 8 weeks)
What to take
Your family/medical history
A list of any questions that you may have
Doctor’s Visit

11. 1st Trimester Test and Procedures
Nuchal Translucency Screening (NTS).
Done between 11 and 14 weeks
Uses and ultrasound and a blood test
Calculates the risk of birth defect
Checks thickness of neck
5% chance of false-positive
Chronic Villus Sampling (CVS)
Done between 10 and 12 weeks
Doctor inserts needle through the abdomen or a catheter through the cervix into the placenta to sample the cells
They look to find Chromosomal birth defects
About 1 in 200 miscarry as a result of the test
1st Trimester Test and Procedures

12. Miscarriage 20% of all pregnancies end in miscarriage Symptoms Causes
Vaginal bleeding
Dizziness
Blurred vision
Abdominal pains
Headache
Baby is moving or kicking less
Causes
Random events
Chromosomal abnormalities
Egg doesn’t implant into the uterus
Embryo has structural defects
Miscarriage

13. Miscarriage Cont’d What to do if you suspect
You should go to the doctor immediately. There may be something that they can do to prevent it.
What happens after
You will have cramping up to a day or so after as well as some bleeding
You will pass the tissue yourself or the doctor will have to remove the tissue from the uterus
Miscarriage Cont’d

14. Pregnancy Weeks 1-9 Video
weeks-1-to-9_ bc
weeks-10-to-14_ bc
exam_ bc
Pregnancy Weeks Video
Ultrasound Video