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Week 1
Your tiny embryo is growing like crazy, and you may be noticing pregnancy discomforts like sore breasts and fatigue. -
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week 2
It's a potentially life-changing week. You'll ovulate, and if egg meets sperm, you'll be on your way to pregnancy! -
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week 3
Your baby is a tiny ball – called a blastocyst – made up of several hundred cells that are multiplying quickly. -
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week 4
Deep in your uterus, your baby is an embryo made up of two layers, and your primitive placenta is developing. -
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week 5
Your tiny embryo is growing like crazy, and you may be noticing pregnancy discomforts like sore breasts and fatigue. -
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week 6
Your baby's nose, mouth, and ears are beginning to take shape. You may be having morning sickness and spotting. -
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week 7
Your baby – still an embryo with a small tail – is forming hands and feet. Your uterus has doubled in size. -
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week 8
Your baby is constantly moving, though you can't feel it. Meanwhile, you may be making decisions about prenatal tests. -
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week 9
Nearly an inch long now, your baby is starting to look more human. You've probably noticed your waist thickening. -
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week 10
Your baby has finished the most critical part of development! Organs and structures are in place and ready to grow. -
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week 11
Your baby's hands will soon open and close into fists, and tiny tooth buds are appearing underneath the gums. -
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week 12
Your little one's teeny toes can curl, her brain is growing furiously, and her kidneys are starting to excrete urine. -
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week 13
It's the last week of the first trimester! Your baby now has exquisite fingerprints and is almost 3 inches long. -
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week 14
Your baby's tiny features are making different expressions. And you may be feeling more energetic and less nauseated. -
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week 15
Your baby can sense light and is forming taste buds. Have a stuffy nose? It's a surprising pregnancy side effect. -
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week 16
Get ready for a growth spurt. In the next few weeks, your baby will double his weight and add inches to his length. -
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week 17
Your baby's skeleton is changing from soft cartilage to bone, and the umbilical cord is growing stronger and thicker. -
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week 18
Your baby's genitals are developed enough to see on an ultrasound. Hungry? An increase in appetite is normal now. -
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week 19
Go ahead and sing: Your baby may be able to hear you! And if your sides are aching, it could be round ligament pain. -
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week 20
Congratulations, you're at the halfway mark in your pregnancy! Your baby is swallowing more now and producing meconium. -
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week 21
Feeling your baby move? Those early flutters will turn into full-fledged kicks. Cool fact: She has eyebrows now -
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week 22
Your baby is starting to look like a miniature newborn. And your growing belly may be turning into a hand-magnet. -
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week 23
When you're on the move, your baby can feel the motion. Pretty soon, you may notice swelling in your ankles and feet. -
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week 24
Your baby is long and lean, like an ear of corn. And your growing uterus is now the size of a soccer ball. -
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week 25
Your little one is starting to add some baby fat and grow more hair. Your hair may be looking extra lustrous, too. -
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week 26
Your baby is inhaling and exhaling small amounts of amniotic fluid, which is good practice for breathing. -
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week 27
Feel a tickle? It may be your baby hiccupping. He's also opening and closing his eyes and even sucking his fingers. -
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week 28
Welcome to your last trimester! Your developing baby's eyes may be able to see light filtering in through your womb. -
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week 29
Your baby's muscles and lungs are continuing to mature, and her head is growing to make room for her developing brain. -
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week 30
Your baby now weighs almost 3 pounds. Meanwhile, you may be battling mood swings, clumsiness, and fatigue. -
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week 31
Your baby's strong kicks might be keeping you up at night – and you may be feeling Braxton Hicks contractions, too. -
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week 32
Your baby is plumping up! Meanwhile, your expanding uterus may cause heartburn and shortness of breath. -
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week 33
With your baby now weighing a little over 4 pounds, you might be waddling – and having trouble getting comfy in bed. -
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week 34
Your baby's central nervous system and lungs are maturing, and dizziness and fatigue may be slowing you down. -
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week 35
Your baby is too snug in your womb to do any type of movements. -
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week 36
Your baby is gaining about an ounce a day. You may feel her "drop" down into your pelvis as you approach your due date. -
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week 37
Your baby's brain and lungs are continuing to mature. You may have more vaginal discharge and occasional contractions. -
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week 38
Your baby has a firm grasp, which you'll soon be able to test in person! Meanwhile, watch out for signs of preeclampsia.
