1. Continuing the life cycle
Pregnancy and Birth
Continuing the life cycle

2. Breast Stomach Mother’s Navel Placenta Fetus Umbilical Cord Uterus
Cervix
Vagina
Public Health - Seattle & King County • Family Planning Program • © 1986, revised 2009 •

3. What happens when?
Pregnancy lasts about 40 weeks, counting from the first day of a woman’s last normal period.
The weeks are grouped into three trimesters.

4. What happens when? 1st Trimester Sperm and egg unite Limb buds form
Fetus has a tail
Pregnant woman experiences “morning sickness”
Head bulge forms
Fetus is about three inches long
Placenta forms
2nd Trimester
Fetus becomes active
Heartbeat can be heard with a stethoscope
Gender can be determined with a sonogram
Fetus is about 11 inches long
3rd Trimester
Body systems complete development
Fetus increases dramatically in size and weight
Pregnant woman may find movement difficult
Fetus is about 20 inches long
Birth occurs

5. Identical Twins
Fraternal Twins
Image Source: Womenshealth.gov

6. Birth Cesarean Birth Vaginal Birth
Image Source: Womenshealth.gov and aurorahealthcare.org
Cesarean Birth

7. Healthy Pregnancy Prenatal Care – Early and often
Nutrition – Increase good calories by 300 a day
Exercise – 2 ½ hours a week
Rest
Daily vitamin and folic acid – to prevent birth defects
Avoid cigarettes, drugs, and alcohol