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What Size Is Your Baby at 12 Weeks

pregnant woman holding watermelon

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We're not sure why it's so fun comparing your fetus to fruit, but it really is. From poppy seed to watermelon, go a sense of your babe's size by calendar week with these growth averages and fruit-size analogies.

Weeks 1 to 3

week i

Credit: Analogy past Yeji Kim

Your due date is calculated from the showtime day of your final menstrual menstruum. Conception occurs nigh two weeks from this day, and that's when you're truly considered pregnant. In simply forty short weeks, your baby volition abound from the size of a tiny seed to the size of a plump watermelon. Here, Jonathan D. Herman, M.D., shares the boilerplate infant size past week.

Read more nearly pregnancy week 1, pregnancy calendar week ii, and pregnancy week 3.

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Baby Size at Calendar week 4

calendar week-4-feature-Weeks 4-6_1

Credit: Illustration by Yeji Kim

Your fertilized egg, known equally a zygote, is a ball of 32 cells that's about the size of a poppy seed. It'due south at this phase that the cells split into three distinct layers from which your baby'due south internal organs and skin volition develop.

Babe'due south Length: About 0.014 to 0.04 in.

Baby's Weight: Less than 0.04 oz.

Learn more virtually pregnancy calendar week 4.

Infant Size at Week 5

week 5

Credit: Illustration by Yeji Kim

The ball of cells now resembles a tadpole and is as large every bit a peppercorn. The creation of the brain, spinal cord, heart, and blood vessels is already well nether way.

Babe's Length: About 0.05 in.

Babe'due south Weight: Less than 0.04 oz.

Learn more about pregnancy calendar week 5.

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Babe Size at Week 6

week 6

Credit: Illustration by Yeji Kim

Your little 1 has tripled in size and is protected past amniotic fluid. Although they've grown past leaps and bounds, they're withal only nearly the size of a pomegranate seed.

Infant's Length: 0.13 in.

Baby'southward Weight: Less than 0.04 oz.

Learn more about pregnancy calendar week vi.

Baby Size at Week vii

week vii

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Your baby is at present about the size of a small-scale blueberry. Their arm buds, which formed concluding calendar week, at present look similar paddles.

Baby's Length: about .5 in.

Baby'southward Weight: less than 0.04 oz.

Learn more about pregnancy calendar week seven.

Babe Size at Week 8

week 8

Credit: Illustration by Yeji Kim

Your baby is about the size of a raspberry. Their hands and anxiety accept webbed fingers and toes. Soon this extra tissue between their digits volition be reabsorbed to reveal individual fingers and toes.

Infant's Length: about 0.63 in.

Baby'southward Weight: less than 0.04 oz.

Note: From week 8 through week 20, measurements are taken from crown to rump.

Acquire more well-nigh pregnancy calendar week viii.

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Baby Size at Week 9

calendar week 9

Credit: Analogy by Yeji Kim

Your baby has graduated from embryo to fetus—and is now about the size of a cherry. The digestive tract and reproductive organs are formed, but it's still too early for even a skilled technician to tell whether you're having a boy or a girl.

Baby's Length: About .9 in.

Baby's Weight: Nigh .07 oz.

Larn more nearly pregnancy week 9.

Babe Size at Week x

week ten of pregnancy

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Your babe is about the size of a kumquat and tin can stretch their spine. Their eyes and eyelids are more developed and their eyebrows are beginning to abound.

Baby's Length: i.22 in.

Baby's Weight: 0.14 ounce

Learn more nigh pregnancy week 10.

Baby Size at Week 11

week 11

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Your baby is most the size of a fig. From at present through week twenty of your pregnancy, they'll increment 30-fold in weight and triple in length.

Baby'due south Length: 1.61 in.

Babe'south Weight: 0.25 oz.

Larn more than virtually pregnancy week 11.

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Baby Size at Week 12

week 12

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Your infant is virtually three inches long now, about the size of a plum. Fingernails, toenails, and bones are forming, and a fine layer of hair covers most of their body.

Baby'due south Length: 2.13 in.

Babe's Weight: 0.49 oz.

Larn more near pregnancy week 12.

Baby Size at Week 13

calendar week 13

Credit: Analogy by Yeji Kim

Your beautiful baby is the size of a Meyer lemon this week—and their vocal cords are beginning to develop.

Baby's Length: 2.91 in.

Infant's Weight: 0.81 oz.

Learn more about pregnancy calendar week 13.

Baby Size at Calendar week 14

Feature Image-week 10-15-02

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Equally you enter your 2d trimester, your infant is the size of a peach. All of their internal organs formed during the first trimester, and they will continue to mature from now until they're built-in.

Baby'south Length: iii.42 in.

Baby's Weight: 1.52 oz.

Learn more about pregnancy week 14.

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Baby Size at Week 15

week 15

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Your baby is at present the size of an apple tree. Their brain controls all the muscles in their body; they're able to move. Yes, they'll even do somersaults! Simply if this is your showtime baby, y'all probably won't feel them moving for several more weeks.

Babe'due south Length: 3.98 in.

Babe'due south Weight: two.47 oz.

Acquire more almost pregnancy week 15.

Infant Size at Week 16

week sixteen

Your baby is now the size of an avocado—and they can brand a fist and fifty-fifty suck their thumb.

Baby'due south Length: iv.57 in.

Infant'south Weight: 3.53 oz.

Learn more near pregnancy week xvi.

Baby Size at Week 17

week 17

Credit: Illustration by Yeji Kim

Your baby is now the size of a pear. They have hiccupped before, but this is the start time you might feel it.

Babe'southward Length: 5.12 in.

Baby'south Weight: four.94 oz.

Learn more about pregnancy week 17.

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Babe Size at Week 18

Feature Image-week 16-xviii-03

Credit: Analogy by Yeji Kim

Your baby is now most the size of a sweet potato—and their tiny fingers now accept unique fingerprints!

Baby's Length: 5.59 in.

Baby's Weight: half dozen.70 oz.

Larn more about pregnancy week 18.

Baby Size at Calendar week xix

Feature Epitome-week 19-21-01

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Your baby is about the size of a mango. Their legs are now longer than their arms, and they'll start giving yous "hi" jabs at regular intervals, which you might be able to feel if this is your second or 3rd pregnancy. First-time moms nevertheless might non feel anything for a few more weeks.

Baby's Length: half-dozen.02 in.

Babe's Weight: eight.47 oz.

Learn more than virtually pregnancy calendar week 19.

Baby Size at Calendar week 20

Pregnancy week past week-Feature Image-week 20

Credit: Analogy by Yeji Kim

Your infant is now the size of a banana. They may have thin eyebrows and sprout some hair on their head.

Baby's Length: half-dozen.46 in.

Baby'southward Weight: 10.58 oz.

Larn more most pregnancy calendar week xx.

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Infant Size at Week 21

Pregnancy week by week characteristic Epitome-week 21

Credit: Illustration by Yeji Kim

Your baby is as long as a carrot, and their skin now responds to impact. If y'all put pressure on your belly, they'll move away or push button back.

Baby'due south Length: 10.51 in.

Baby'southward Weight: 12.70 oz.

Learn more than nigh pregnancy week 21.

Baby Size at Week 22

week 22

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Your babe is the size of a papaya. Their lungs are developing rapidly, and they will begin making a protein called surfactant, which will help them breathe independently in one case they're born.

Baby'due south Length: 10.94 in.

Baby's Weight: 15.17 oz.

Learn more about pregnancy week 22.

Babe Size at Week 23

week 23

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Your baby is as large every bit an eggplant. Their brain and hearing are more developed this week, and they're beginning to recognize your voice.

Babe'southward Length: 11.38 in.

Baby'due south Weight: 1.ten lb.

Learn more about pregnancy week 23.

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Infant Size at Week 24

week 24

Your baby is equally long every bit an ear of corn. Their nostrils are opening at present for "practice breathing"; they'll go through the aforementioned motions of real breathing but inhale amniotic fluid instead of air.

Baby'due south Length: 11.81 in.

Baby's Weight: ane.32 lb.

Learn more most pregnancy calendar week 24.

Babe Size at Week 25

Pregnancy Week 25 Fruit

Credit: Illustration by Caitlin-Marie Miner Ong

Your infant is the size of an acorn squash. They're developing a firm grasp and may reach out and take hold of the umbilical string. They can also stick out their tongue!

Baby'south Length: xiii.62 in.

Baby'due south Weight: ane.46 lb.

Learn more about pregnancy week 25.

Baby Size at Week 26

pregnancy week 26 baby size

Credit: Illustration by Caitlin-Marie Miner Ong

Your babe is nearly as long as a zucchini. Their eyebrows and eyelashes are well-defined; plus, they have more than hair on their head this week.

Infant's Length: 14.02 in.

Baby'south Weight: 1.68 lb.

Learn more than most pregnancy week 26.

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Baby Size at Week 27

pregnancy week 27 baby size

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Your babe is now the size of a cauliflower. At this point, they may be able to distinguish between your vocalisation and your partner's vox.

Babe's Length: 14.41 in.

Babe'southward Weight: 1.93 lb.

Learn more about pregnancy week 27.

Baby Size at Week 28

week 28

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Your infant is the size of a kabocha squash, and they're outset to open up their eyes and blink.

Baby's Length: 14.80 in.

Baby'south Weight: ii.22 lbs

Acquire more about pregnancy week 28.

Baby Size at Calendar week 29

week 29

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Your infant is the size of a large butternut squash. Their skin is still wrinkly, but every bit fat accumulates, they will make full out.

Baby's Length: fifteen.2 in.

Infant's Weight: 2.54 lbs.

Larn more than about pregnancy calendar week 29.

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Baby Size at Week 30

week 30

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Your babe is the size of a big cabbage. They take cycles of sleeping and waking. Later xxx to 90 minutes of snoozing, they may give you a kick to let you know they're awake.

Infant's Length: 15.71 in.

Infant's Weight: ii.91 lbs.

Learn more about pregnancy week 30.

Babe Size at Calendar week 31

pregnancy week 31 infant size

Credit: Analogy by Julia Bohan

Your babe is near every bit long as a bunch of leeks, and they will now gain as much as a half pound per week until they're built-in.

Infant's Length: 16.eighteen in.

Baby's Weight: 3.31 lbs.

Learn more most pregnancy week 31.

Babe Size at Week 32

pregnancy week 32 infant size

Credit: Illustration by Julia Bohan

Your baby is the size of a Napa cabbage. Because their taste buds are adult, they may acquire a preference for the foods you swallow, which they sample when they swallow amniotic fluid.

Baby's Length: 16.69 in.

Infant's Weight: 3.75 lbs.

Larn more about pregnancy week 32.

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Baby Size at Week 33

pregnancy calendar week 33 baby size

Credit: Illustration by Julia Bohan

Your baby is the size of a pineapple. Lanugo, the fine hair that covered their entire body and helped continue them warm as they developed, is starting to disappear—but there might notwithstanding exist patches of it on their shoulders and dorsum.

Babe's Length: 17.xx in.

Baby's Weight: four.23 lbs.

Learn more well-nigh pregnancy week 33.

Baby Size at Week 34

pregnancy week 34 baby size

Credit: Illustration by Emma Darvick

Your baby is the size of a cantaloupe. Their bones are fully developed by now, and they're turning their head, pirouetting, and moving their body from side to side.

Baby'due south Length: 17.72 in.

Baby'due south Weight: 4.73 lbs.

Learn more about pregnancy week 34.

Baby Size at Week 35

pregnancy week 35 babe size

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Your baby is the size of a honeydew melon. In preparation for birth, they're now upside-downwardly in your uterus.

Babe's Length: eighteen.19 in.

Baby's Weight: 5.25 lbs.

Learn more about pregnancy calendar week 35.

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Baby Size at Calendar week 36

pregnancy calendar week 36 baby size

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Your babe is at present the size of a head of romaine lettuce, and their wrinkly suit of skin is filling out every bit they get plumper.

Baby'due south Length: 18.66 in.

Infant's Weight: 5.78 lbs.

Larn more almost pregnancy week 36.

Baby Size at Week 37

pregnancy week 37 baby size

Credit: Illustration by Emma Darvick

Your baby is every bit long as stalk of Swiss chard. Because they're running out of room in your uterus, they generally stretch and wiggle, instead of delivering big kicks.

Baby'southward Length: 19.thirteen in.

Babe's Weight: six.thirty lbs.

Learn more than about pregnancy calendar week 37.

Baby Size at Week 38

pregnancy week 38 baby size

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Your baby is the length of a stalk of rhubarb. Connections are forming in their brain that will assist them swallow and fifty-fifty slumber amend once they're born.

Infant'southward Length: 19.61 in.

Babe's Weight: 6.fourscore lbs.

Learn more nearly pregnancy week 38.

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Baby Size at Weeks 39

pregnancy week 39 baby size

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Your baby now weighs as much as a small pumpkin. At this indicate, they have shed about of that white creamy substance chosen vernix and the fine, fur-like hair chosen lanugo that has covered their skin since the eye of your second trimester.

Baby's Length: 19.96 in.

Infant's Weight: 7.25 lbs.

Learn more nearly pregnancy week 39.

Baby Size at Weeks twoscore-42

pregnancy week 40 baby size

Credit: Illustration past Julia Bohan

By the time they're born, your baby may exist watermelon-size. You're expecting to give birth this week, merely don't worry if your baby decides to stick effectually a little longer. Many first babies are late, and they'll be worth the expect—we hope!

Baby'due south Length: 20.16 to 21 in.

Baby's Weight: seven.63 to 9 lbs.

Learn more about pregnancy week 40, pregnancy calendar week 41, and pregnancy week 42.

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Source: https://www.parents.com/pregnancy/week-by-week/how-big-is-your-baby-this-week/

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