Stages of Pregnancy Week by Week

Let our pregnancy week by week calendar guide you through the various stages of pregnancy right up until birth. We take you from the exciting time you first discover you're pregnant, through the uncomfortable stages of morning sickness. We'll help you pick a baby name, decorate your nursery, pack your hospital bag, and even prepare you for the pinnacle moment - the birth of your new baby! Find your week of pregnancy or get started with Week 1.
pregnant woman holding watermelon
How Big Is My Baby This Week? Here's a Baby Fruit Size Chart
Fetus inside the womb
Baby's Development in the Womb: A Week-By-Week Guide
Pregnancy to do list
Your Pregnancy To-Do List
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Baby Size Comparisons by Week That Aren't Fruit
mom holding pregnant belly
Your First Trimester of Pregnancy, Week-by-Week
Pregnancy week 11
Week 11 of Your Pregnancy
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Your Third Trimester of Pregnancy, Week-by-Week
Pregnancy week 15
Week 15 of Your Pregnancy
Pregnancy week 16
Week 16 of Your Pregnancy
Pregnancy week 13
Week 13 of Your Pregnancy
Pregnancy week 33
Week 33 of Your Pregnancy
Pregnancy week 14
Week 14 of Your Pregnancy
Pregnancy week 29
Week 29 of Your Pregnancy
Pregnancy week 10
Week 10 of Your Pregnancy
Week 2 of Your Pregnancy
Pregnancy week 17
Week 17 of Your Pregnancy
Pregnancy week 23
Week 23 of Your Pregnancy
Pregnancy week 34
Pregnancy Week 34
Pregnancy week 25
Week 25 of Your Pregnancy
Pregnancy week 26
Week 26 of Your Pregnancy
Pregnancy week 6
Week 6 of Your Pregnancy
Parenting week 9
Week 9 of Your Pregnancy
Pregnancy week 5
Week 5 of Your Pregnancy
Pregnancy week 36
Pregnancy Week 36
Pregnancy week 37
Pregnancy Week 37
week 4 pregnancy
Week 4 of Your Pregnancy
Pregnancy week 7
Week 7 of Your Pregnancy
Week 3 of Your Pregnancy
Pregnancy week 8
Week 8 of Your Pregnancy
Pregnancy week 21
Week 21 of Your Pregnancy
Pregnancy week 30
Week 30 of Your Pregnancy
Pregnancy week 32
Week 32 of Your Pregnancy
Week 35
Week 35 Ultrasound: What It Would Look Like
Pregnancy week 12
Week 12 of Your Pregnancy
Week 1 of Your Pregnancy
Pregnancy week 28
Week 28 of Your Pregnancy
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Should I be concerned if I am 25 weeks and haven't really felt my son moving yet?
Pregnancy week 31
Week 31 of Your Pregnancy
Pregnancy week 35
Pregnancy Week 35
Illustration by Yeji Kim
Week 24 of Your Pregnancy
Week 37
Week 37 Ultrasound: What It Would Look Like
Pregnancy week 22
Week 22 of Your Pregnancy
Week 9
9 Week Ultrasound: What It Would Look Like
Pregnancy week 39
Pregnancy Week 39
Pregnancy week 20
Week 20 of Your Pregnancy
Pregnancy week 18
Week 18 of Your Pregnancy
Pregnancy week 19
Week 19 of Your Pregnancy
Pregnancy week 27
Week 27 of Your Pregnancy
Pregnancy week 38
Pregnancy Week 38
Pregnancy week 41
Pregnancy Week 41
Pregnancy week 40
Pregnancy Week 40
Week 20
Week 20 Ultrasound: What It Would Look Like
Week 39
Week 39 Ultrasound: What It Would Look Like
Week 21
Week 21 Ultrasound: What It Would Look Like
Week 4
Week 1 & 2 Ultrasounds: What They Would Look Like
Week 12
Week 12 Ultrasound: What It Would Look Like
Week 26
Week 26 Ultrasound: What It Would Look Like
Week 18
Week 18 Ultrasound: What It Would Look Like
Sperm swimming to egg
The Inside Story: Your Baby in Weeks 1 Through 4
Week 14
Week 14 Ultrasound: What It Would Look Like
Week 7
Week 7 Ultrasound: What It Would Look Like
Week 5
Week 5 Ultrasound: What It Would Look Like
Week 10
Week 10 Ultrasound: What It Would Look Like