A normal pregnancy lasts nine months. Each three-month period of pregnancy is called a trimester. During each trimester, the fetus grows and develops. There are specific prenatal tests to monitor both the mother's health and fetal health during each trimester.
With modern technology, health professionals can
- Detect birth defects
- Identify problems that may affect childbirth
- Correct some kinds of fetal problems before the baby is born
- Pregnancy week by week (March of Dimes Birth Defects Foundation)
- Prenatal Development: How Your Baby Grows During Pregnancy (American College of Obstetricians and Gynecologists) Also in Spanish
- Stages of Pregnancy (Department of Health and Human Services, Office on Women's Health) Also in Spanish
- Your Baby's Development: The First Trimester (American Academy of Family Physicians)
- Your Baby's Development: The Second Trimester (American Academy of Family Physicians)
- Your Baby's Development: The Third Trimester (American Academy of Family Physicians)
- Impaired Eyesight May Be First Sign of Zika Damage in Babies (07/17/2017, HealthDay)
- Babies' Fascination with Faces May Start in the Womb (06/08/2017, HealthDay)
Diagnosis and Tests
- What Are the Risks of Preeclampsia and Eclampsia to the Fetus? (National Institute of Child Health and Human Development) Also in Spanish
- Detecting Kidney and Urinary Tract Abnormalities Before Birth (National Kidney Foundation)
- Detection of a Heart Defect in the Fetus (American Heart Association)
- Fetal Circulation (American Heart Association)
- Fetal Heart (Texas Heart Institute) Also in Spanish
- Fundal Height: An Accurate Indicator of Fetal Growth? (Mayo Foundation for Medical Education and Research)
- Hydrops Fetalis/Erythroblastosis Fetalis (Children's Hospital and Health System, Wisconsin)
- Intrauterine Growth Restriction (American Academy of Family Physicians) Also in Spanish
Statistics and Research
- Surgery on Fetus Reduces Complications of Spina Bifida (National Institute of Child Health and Human Development)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Committee Opinion No. 713: Antenatal Corticosteroid Therapy for Fetal Maturation.
- Article: Committee Opinion No. 712: Intrapartum Management of Intraamniotic Infection.
- Article: Committee Opinion No. 713 Summary: Antenatal Corticosteroid Therapy for Fetal...
- Fetal Health and Development -- see more articles