Pregnancy Development Stages

Pregnancy is divided into three distinct stages: the first trimester, second trimester, and third trimester. Vital fetal growth and development happens in each of them, and your body also changes along the way. Check out our guide on pregnancy stages to learn about ultrasounds, important prenatal tests, fetal development, health concerns, about more.
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Pregnancy Confidential Podcast Week 39: Let's Get This Show on the Road!
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When will I start to feel my baby kick?
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When Can You Hear a Baby's Heartbeat?
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Your First Trimester of Pregnancy, Week-by-Week
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Your Second Trimester, Week-by-Week
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Your Third Trimester of Pregnancy, Week-by-Week
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How Big Is Your Baby in Third Trimester?
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When does a fetus start to move?
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Enjoy Those First Kicks
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At what rate is it normal for babies to grow during pregnancy?
How Big Is Your Baby Measuring Pregnant Belly
How Big Is Your Baby in Second Trimester?
Week 22
What Is a 3D Ultrasound?
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Normal Fetal Movement During Pregnancy
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Why isn't my baby kicking?
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Is it normal not to find my baby's heart rate at 8 weeks of pregnancy?
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Can my baby taste before she's born?
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Why do I keep crying during pregnancy?
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Pregnancy Confidential Podcast Week 9: OMG I'm Pregnant!
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Cute Baby Alert: Megan Fox and Brian Austin Green's Boys!
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Handling a Tough First Trimester of Pregnancy
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10 Strange Pregnancy Symptoms
Pregnancy Month by Month: Month 1
10 First Trimester To-Dos
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Understanding HCG Levels in Pregnancy
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Your First Trimester Diet
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What to Expect in the First Trimester
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7 Reasons Pregnancy is Good for You
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What Happens When You Get a RhoGAM Shot
Zika virus testing
Why Doctors Test for Rh Factor During Pregnancy
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What Is NIPT, or Noninvasive Prenatal Testing?
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What is Rhesus Disease and How Does it Affect Pregnancy?
Heartburn During Pregnancy
How to Relieve Heartburn During Pregnancy
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Late Miscarriage
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What to Expect in the Second Trimester
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Treatment Options for Common Genetic Disorders
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Do You Need Genetic Counseling?
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Glucose Tests During Pregnancy: What to Expect
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Pregnancy Confidential Podcast Week 34: Due Dates are Dumb!
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Pregnancy Confidential Podcast Week 32: Expecting the Unexpected
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What to Expect in Your Third Trimester
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4 High-Risk Pregnancy Conditions and How to Cope
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5 Foods That Cause Heartburn During Pregnancy
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Third Trimester Tests
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Should You Get Amniocentesis?
Sperm Meets Egg: Weeks 1 to 3 of Pregnancy
A Special Look at First Trimester Ultrasound Pictures
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Your Baby's Alertness in the Womb
Second Trimester Begins: Weeks 13 to 17 of Pregnancy
Second Trimester Ultrasound Pictures
Sleep Cycles: Weeks 26 to 30 of Pregnancy
Third Trimester Ultrasound Pictures
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Twins: A Closer Look at Your Developing Babies
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Fetal Development Weeks 9 Through 13
Week 35
Week 35 Ultrasound: What It Would Look Like
Week 37
Week 37 Ultrasound: What It Would Look Like
Week 9
9 Week Ultrasound: What It Would Look Like
Week 18
Week 18 Ultrasound: What It Would Look Like
Week 20
Week 20 Ultrasound: What It Would Look Like
Week 14
Week 14 Ultrasound: What It Would Look Like
Week 39
Week 39 Ultrasound: What It Would Look Like
Feeling Baby Move: Weeks 18 to 21 of Pregnancy
What Do Baby Kicks Feel Like (And Answers to Other Common Questions)
Week 21
Week 21 Ultrasound: What It Would Look Like
Week 7
Week 7 Ultrasound: What It Would Look Like
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Quickening in Pregnancy: Feeling the First Fetal Kicks
Week 12
Week 12 Ultrasound: What It Would Look Like
Week 26
Week 26 Ultrasound: What It Would Look Like
Week 10
Week 10 Ultrasound: What It Would Look Like