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    How Big Is My Baby This Week?
    Here's Your Baby Fruit Size Chart

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


    Baby Size at Week 4

    Your fertilized egg, known as a zygote, is a ball of 32 cells that's about the size of a poppy seed. It's at this stage that the cells separate into three distinct layers from which your baby's internal organs and skin will develop.

    Baby's Length: About 0.014 to 0.04 in.

    Baby's Weight: Less than 0.04 oz.


    Baby Size at Week 5

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

    Baby's Length: About 0.05 in.
    Baby's Weight: Less than 0.04 oz.


    Baby Size at Week 6

    Your little one has tripled in size and is protected by amniotic fluid. Although they've grown by leaps and bounds, they're still only about the size of a pomegranate seed.

    Baby's Length: 0.13 in.
    Baby's Weight: Less than 0.04 oz.


    Baby Size at Week 7

    Your baby is now about the size of a small blueberry. Their arm buds, which formed last week, now look like paddles.

    Baby's Length: about .5 in.
    Baby's Weight: less than 0.04 oz.


    Baby Size at Week 8

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

    Baby's Length: about 0.63 in.
    Baby's Weight: less than 0.04 oz.

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


    Baby Size at Week 9

    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: About .07 oz.


    Baby Size at Week 10

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

    Baby's Length: 1.22 in.
    Baby's Weight: 0.14 ounce


    Baby Size at Week 11

    Your baby is about the size of a fig. From now through week 20 of your pregnancy, they'll increase 30-fold in weight and triple in length.

    Baby's Length: 1.61 in.
    Baby's Weight: 0.25 oz.


    Baby Size at Week 12

    Your baby is almost 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's Length: 2.13 in.
    Baby's Weight: 0.49 oz.


    Baby Size at Week 13

    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.
    Baby's Weight: 0.81 oz.


    Baby Size at Week 14

    As you enter your second trimester, your baby 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 born.

    Baby's Length: 3.42 in.
    Baby's Weight: 1.52 oz.


    Baby Size at Week 15

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

    Baby's Length: 3.98 in.
    Baby's Weight: 2.47 oz.


    Baby Size at Week 16

    Your baby is now the size of an avocado—and they can make a fist and even suck their thumb.

    Baby's Length: 4.57 in.
    Baby's Weight: 3.53 oz.


    Baby Size at Week 17

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

    Baby's Length: 5.12 in.
    Baby's Weight: 4.94 oz.


    Baby Size at Week 18

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

    Baby's Length: 5.59 in.
    Baby's Weight: 6.70 oz.


    Baby Size at Week 19

    Your baby is about the size of a mango. Their legs are now longer than their arms, and they'll start giving you "hello" jabs at regular intervals, which you might be able to feel if this is your second or third pregnancy. First-time moms still might not feel anything for a few more weeks.

    Baby's Length: 6.02 in.
    Baby's Weight: 8.47 oz.


    Baby Size at Week 20

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

    Baby's Length: 6.46 in.
    Baby's Weight: 10.58 oz.


    Baby Size at Week 21

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

    Baby's Length: 10.51 in.
    Baby's Weight: 12.70 oz.


    Baby Size at Week 22

    Your baby 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 once they're born.

    Baby's Length: 10.94 in.
    Baby's Weight: 15.17 oz.


    Baby Size at Week 23

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

    Baby's Length: 11.38 in.
    Baby's Weight: 1.10 lb.


    Baby Size at Week 24

    Your baby is as long as an ear of corn. Their nostrils are opening now for "practice breathing"; they'll go through the same motions of real breathing but inhale amniotic fluid instead of air.

    Baby's Length: 11.81 in.
    Baby's Weight: 1.32 lb.


    Baby Size at Week 25

    Your baby is the size of an acorn squash. They're developing a firm grasp and may reach out and grab the umbilical cord. They can also stick out their tongue!

    Baby's Length: 13.62 in.
    Baby's Weight: 1.46 lb.


    Baby Size at Week 15


    Baby Size at Week 26

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

    Baby's Length: 14.02 in.
    Baby's Weight: 1.68 lb.


    Baby Size at Week 27

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

    Baby's Length: 14.41 in.
    Baby's Weight: 1.93 lb.


    Baby Size at Week 28

    Your baby is the size of a kabocha squash, and they're beginning to open their eyes and blink.

    Baby's Length: 14.80 in.
    Baby's Weight: 2.22 lbs


    Baby Size at Week 29

    Your baby is the size of a large butternut squash. Their skin is still wrinkly, but as fat accumulates, they will fill out.

    Baby's Length: 15.2 in.
    Baby's Weight: 2.54 lbs.


    Baby Size at Week 30

    Your baby is the size of a large cabbage. They have cycles of sleeping and waking. After 30 to 90 minutes of snoozing, they may give you a kick to let you know they're awake.

    Baby's Length: 15.71 in.
    Baby's Weight: 2.91 lbs.


    Baby Size at Week 31

    Your baby is about as long as a bunch of leeks, and they will now gain as much as a half pound per week until they're born.

    Baby's Length: 16.18 in.
    Baby's Weight: 3.31 lbs.


    Baby Size at Week 32

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

    Baby's Length: 16.69 in.
    Baby's Weight: 3.75 lbs.


    Baby Size at Week 33

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

    Baby's Length: 17.20 in.
    Baby's Weight: 4.23 lbs.


    Baby Size at Week 34

    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's Length: 17.72 in.
    Baby's Weight: 4.73 lbs.


    Baby Size at Week 35

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

    Baby's Length: 18.19 in.
    Baby's Weight: 5.25 lbs.


    Baby Size at Week 36

    Your baby is now the size of a head of romaine lettuce, and their wrinkly suit of skin is filling out as they get plumper.

    Baby's Length: 18.66 in.
    Baby's Weight: 5.78 lbs.


    Baby Size at Week 37

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

    Baby's Length: 19.13 in.
    Baby's Weight: 6.30 lbs.


    Baby Size at Week 38

    Your baby is the length of a stalk of rhubarb. Connections are forming in their brain that will help them swallow and even sleep better once they're born.

    Baby's Length: 19.61 in.
    Baby's Weight: 6.80 lbs.


    Baby Size at Week 39

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

    Baby's Length: 19.96 in.
    Baby's Weight: 7.25 lbs.


    Baby Size at Weeks 40-42

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

    Baby's Length: 20.16 to 21 in.
    Baby's Weight: 7.63 to 9 lbs.

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