How Big Is Your Baby: Week by Week Food Comparisons

How big is your baby during each week of your pregnancy? Learn about the size of your unborn baby in comparison to different foods with a week by week baby size chart. Click on each week to learn more about your baby and your body during each week of pregnancy.

Weeks 3 and 4: Poppy Seed

During week 3 and week 4 of pregnancy, your baby is the size of a poppy seed, measuring between 0.014 and 0.04 inches in length.

Poppy Seeds
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Baby Is the Size of a Poppy Seed
During Week 3 and Week 4 of Pregnancy

Week 5: Sesame Seed

During week 5 of pregnancy, your baby is the size of a sesame seed, measuring about 0.05 inches in length.

Sesame Seeds
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Baby Is the Size of a Sesame Seed
During Week 5 of Pregnancy

Week 6: Lentil

During week 6 of pregnancy, your baby is the size of a lentil, measuring between 0.08 inches to 0.16 inches in length.

Lentils
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Baby Is the Size of a Lentil
During Week 6 of Pregnancy

Week 7: Blueberry

During week 7 of pregnancy, your baby is the size of a blueberry in length, measuring about 0.5 inches.

Blueberries
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Baby Is the Size of a Blueberry
During Week 7 of Pregnancy

Week 8: Raspberry

During week 8 of pregnancy, your baby is the size of a raspberry in length, measuring between half (0.5) and one (1) inch.

Raspberries
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Baby Is the Size of a Raspberry
During Week 8 of Pregnancy

Week 9: Grape

During week 9 of pregnancy, your baby is the size of a grape, measuring nearly one (1) inch in length and weighing no more than a fraction of an ounce.

Green Grapes
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Baby Is the Size of a Grape During
Week 9 of Pregnancy

Week 10: Kumquat

During week 10 of pregnancy, your baby is the size of a kumquat, measuring a little over one (1) inch in length and weighing no more than a quarter of an ounce.

Kumquats
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Baby Is the Size of a Kumquat
During Week 10 of Pregnancy

Week 11: Fig

During week 11 of pregnancy, your baby is the size of a fig, measuring between an inch and a half (1.5) and two (2) inches in length from crown to rump.

Figs
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Baby Is the Size of a Fig
During Week 11 of Pregnancy

Week 12: Lime

During week 12 of pregnancy, your baby is the size of a lime, measuring at just over two (2) inches in length from crown to rump and weighing about half (0.5) an ounce.

Limes
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Baby Is the Size of a Lime
During Week 12 of Pregnancy

Week 13: Peach

During week 13 of pregnancy, your baby is the size of a peach, measuring about three (3) inches in length from crown to rump and weighing just about one (1) ounce.

Peaches
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Baby Is the Size of a Peach
During Week 13 of Pregnancy

Week 14: Lemon

During week 14 of pregnancy, your baby is the size of a lemon, measuring about three and a half (3.5) inches from crown to rump and weighing approximately one and a half (1.5) ounces.

Lemons
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Baby Is the Size of a Lemon
During Week 14 of Pregnancy

Week 15: Apple

During week 15 of pregnancy, your baby is the size of an apple, measuring about four (4) inches in length from crown to rump and weighing about two and a half (2.5) ounces.

Apples
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Baby Is the Size of an Apple
During Week 15 of Pregnancy

Week 16: Avocado

During week 16 of pregnancy, your baby is the size of an avocado, measuring four and a half (4.5) inches from crown to rump and weighing about three and a half (3.5) ounces.

Avocados
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Baby Is the Size of an Avocado
During Week 16 of Pregnancy

Week 17: Potato

During week 17 of pregnancy, your baby is the size of a potato, measuring five (5) inches from crown to rump and weighing about five (5) ounces.

Potatoes
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Baby Is the Size of a Potato
During Week 17 of Pregnancy

Week 18: Bell Pepper

During week 18 of pregnancy, your baby is the size of a bell pepper in length, measuring five and a half (5.5) inches from crown to rump and weighing about seven (7) ounces.

Bell Peppers
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Baby Is the Size of a Bell Pepper
During Week 18 of Pregnancy

Week 19: Tomato

During week 19 of pregnancy, your baby is the size of a large heirloom tomato, measuring six (6) inches from crown to rump and weighing about eight and a half (8.5) ounces.

Tomatoes
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Baby Is the Size of a Tomato
During Week 19 of Pregnancy

Week 20: Banana

During week 20 of pregnancy, your baby is the size of a banana in length, measuring six and a half (6.5) inches from crown to rump or ten (10) inches from head to heel and weighing about ten and a half (10.5) ounces.

Bananas
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Baby Is Now the Size of a Banana
During Week 20 of Pregnancy

Week 21: Carrot

During week 21 of pregnancy, your baby is the size of a carrot in length, measuring seven (7) inches from crown to rump or ten and a half (10.5) inches from head to heel and weighing about three-fourths (0.75) of a pound.

Carrots
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Your Baby Is the Size of a Carrot
During Week 21 of Pregnancy

Week 22: Spaghetti Squash

During week 22 of pregnancy, your baby is the size of a spaghetti squash, measuring between seven and a half (7.5) and eight (8) inches from crown to rump or eleven (11) inches from head to heel and weighing about one (1) pound.

Spaghetti Squash
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Baby Is the Size of a Spaghetti Squash
During Week 22 of Pregnancy

Week 23: Mango

During week 23 of pregnancy, your baby is the size of a large mango in weight, measuring about eight (8) inches from crown to rump or eleven (11) inches from head to heel and weighing about one (1) pound.

Mangos
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Baby Is the Size of a Mango
During Week 23 of Pregnancy

Week 24: Corn

During week 24 of pregnancy, your baby is the size of an ear of corn in length, measuring about eight and a half (8.5) inches from crown to rump or twelve (12) inches from head to heel and weighing one and one-fourth (1.25) pounds. You are in your sixth month of pregnancy.

Corn
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Baby Is the Size of an Ear of Corn
During Week 24 of Pregnancy

Week 25: Rutabaga

During week 25 of pregnancy, your baby is the size of a rutabaga in weight, measuring between eight and a half (8.5) and nine (9) inches from crown to rump or thirteen and a half (13.5) inches from head to heel and weighing one and a half pounds.

Rutabaga
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Baby Is the Size of a Rutabaga
During Week 25 of Pregnancy

Week 26: Zucchini

During week 26 of pregnancy, your baby is the size of a zucchini in length, measuring a little over nine (9) inches from crown to rump or fourteen (14) inches from head to heel and weighing between one and two-thirds (1.6) and two (2) pounds.

Zucchinis
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Baby Is the Size of a Zucchini
During Week 26 of Pregnancy

Week 27: Cauliflower

During week 27 of pregnancy, your baby is the size of a cauliflower in weight, measuring a little over nine and a half (9.5) inches from crown to rump or fourteen and a half (14.5) to fifteen (15) inches from head to heel and weighing about two (2) pounds.

Cauliflower
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Baby Is the Size of a Cauliflower
During Week 27 of Pregnancy

Week 28: Eggplant

During week 28 of pregnancy, your baby is the size of an eggplant, measuring ten (10) inches from crown to rump or fifteen and a half (15.5) to sixteen (16) inches from head to heel and weighing about two and a half (2.5) pounds.

Eggplant
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Your Baby Is the Size of an Eggplant
During Week 28 of Pregnancy

Week 29: Butternut Squash

During week 29 of pregnancy, your baby is the size of a butternut squash in weight, measuring sixteen (16) to seventeen (17) inches from head to heel and weighing just over two and a half (2.5) pounds.

Butternut Squash
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Baby Is the Size of a Butternut Squash
During Week 29 of Pregnancy

Week 30: Cabbage

During week 30 of pregnancy, your baby is the size of a cabbage in weight, measuring about seventeen (17) inches from head to heel and weighing about three (3) pounds.

Cabbages
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Baby Is the Size of a Cabbage
During Week 30 of Pregnancy

Week 31: Pineapple

During week 31 of pregnancy, your baby is the size of a pineapple, measuring between seventeen (17) and eighteen (18) inches from head to heel and weighing almost three and a half (3.5) pounds.

Pineapples
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Baby Is the Size of a Pineapple
During Week 31 of Pregnancy

Week 32: Jicama

During week 32 of pregnancy, your baby is the size of a jicama in weight, measuring between seventeen and a half (17.5) and eighteen and a half (18.5) inches from head to heel and weighing about three and three-fourths (3.75) pounds.

Jicama
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Your Baby Is the Size of a Jicama
During Week 32 of Pregnancy

Week 33: Durian Fruit

During week 33 of pregnancy, your baby is the size of a durian fruit in weight, measuring between eighteen (18) and nineteen (19) inches from head to heel and weighing about four (4) pounds.

Durian Fruit
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Your Baby Is the Size of a Durian Fruit
During Week 33 of Pregnancy

Week 34: Cantaloupe

During week 34 of pregnancy, your baby is the size of a cantaloupe in weight, measuring between eighteen (18) and nineteen and a half (19.5) inches from head to heel and weighing between four and a half (4.5) and four and three-fourths (4.75) pounds.

Cantaloupes
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Baby Is the Size of a Cantaloupe
During Week 34 of Pregnancy

Week 35: Coconut

During week 35 of pregnancy, your baby is the size of a coconut in weight, measuring between eighteen and a half (18.5) and twenty (20) inches from head to heel and weighing about five and one-fourths (5.25) pounds.

Coconuts
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Baby Is the Size of a Coconut
During Week 35 of Pregnancy

Week 36: Crenshaw Melon

During week 36 of pregnancy, your baby is the size of a Crenshaw melon, measuring between eighteen and a half (18.5) and twenty and a half (20.5) inches from head to heel and weighing about six (6) pounds.

Crenshaw Melons
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Baby Is the Size of a Crenshaw Melon
During Week 36 of Pregnancy

Week 37: Swiss Chard

During week 37 of pregnancy, your baby is the size of a stalk of Swiss chard in length, measuring between nineteen (19) and twenty-one (21) inches from head to heel and weighing about six and one-third (6.3) pounds.

Swiss Chard
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Baby Is the Size of a Stalk of Swiss Chard
During Week 37 of Pregnancy

Week 38: Jackfruit

During week 38 of pregnancy, your baby is the size of a jackfruit in length, measuring between nineteen (19) and twenty-one (21) inches from head to heel and weighing about seven (7) pounds.

Jackfruit
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Baby Is the Size of a Jackfruit
During Week 38 of Pregnancy

Week 39: Pumpkin

During week 39 of pregnancy, your baby is the size of a pumpkin, measuring between nineteen (19) and twenty-one (21) inches from head to heel and weighing a little over seven (7) pounds.

Pumpkin
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Baby Is the Size of a Pumpkin
During Week 39 of Pregnancy

Week 40 and Beyond: Watermelon

During week 40 of pregnancy, your baby is the size of a watermelon, measuring between nineteen (19) and twenty-one (21) inches from head to heel and weighing about seven and a half (7.5) pounds.

Watermelons
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Baby Is the Size of a Watermelon
During Week 40 of Pregnancy and Beyond

Image Credits

Poppy Seeds: http://commons.wikimedia.org/wiki/File:Poppy_seeds.jpg
Sesame Seeds: http://commons.wikimedia.org/wiki/File:Sesame_seeds.JPG
Lentils: http://commons.wikimedia.org/wiki/File:Ab_food_15.jpg
Blueberries: http://commons.wikimedia.org/wiki/File:A_Bunch_of_Blueberries.jpg
Green Grapes: http://commons.wikimedia.org/wiki/File:Green_grapes.jpg
Kumquats: http://commons.wikimedia.org/wiki/File:Kumquat-0245.jpg
Figs: http://commons.wikimedia.org/wiki/File:Ficus_carica0.jpg
Limes: http://commons.wikimedia.org/wiki/File:Limes.jpg
Peaches: http://commons.wikimedia.org/wiki/File:Assorted_Peaches_2816px.jpg
Lemons: http://commons.wikimedia.org/wiki/File:Lemons_in_a_swedish_supermarket_ie_fruits_from_citrus_limon.jpg
Apples: http://commons.wikimedia.org/wiki/File:Apples.jpg
Avocados: http://commons.wikimedia.org/wiki/File:Persea_americana_dsc07271.jpg
Potatoes: http://commons.wikimedia.org/wiki/File:Potatoes.jpg
Bell Peppers: http://commons.wikimedia.org/wiki/File:Yellow_and_green_Bell_peppers.JPG
Tomatoes: http://commons.wikimedia.org/wiki/File:Tomaterotgetigert.jpg
Bananas: http://commons.wikimedia.org/wiki/File:Bananas.jpg
Carrots: http://commons.wikimedia.org/wiki/File:Karotten.JPG
Spaghetti Squash: http://www.flickr.com/photos/heathermariekosur/6232573938/
Mangos: http://commons.wikimedia.org/wiki/File:Mangos_in_market.jpg
Corn: http://commons.wikimedia.org/wiki/File:Corncobs_edit1.jpg
Rutabaga: http://commons.wikimedia.org/wiki/File:Swede_-_rutabaga_-_veggiegroup.jpg
Zucchinis: http://commons.wikimedia.org/wiki/File:Courgette_jaune.jpg
Cauliflower: http://commons.wikimedia.org/wiki/File:Courgette_jaune.jpg
Eggplant: http://commons.wikimedia.org/wiki/File:PikiWiki_Israel_12149_Eggplant.jpg
Butternut Squash: http://commons.wikimedia.org/wiki/File:Starr_070730-7821_Cucurbita_pepo.jpg
Cabbages: http://commons.wikimedia.org/wiki/File:Bangkok_Pak_Khlong_Talat_P1100373.JPG
Pineapples: http://commons.wikimedia.org/wiki/File:Pineapple_display.jpg
Jicama: http://commons.wikimedia.org/wiki/File:Pachyrhizus_erosus_2.jpg
Durian Fruit: http://commons.wikimedia.org/wiki/File:Durianfruits_in_Taiwan_-_Summer_2007.jpg
Cantaloupes: http://commons.wikimedia.org/wiki/File:Cantaloupes_Market_1.JPG
Coconuts: http://commons.wikimedia.org/wiki/File:Coconut_123.jpg
Crenshaw Melons: http://commons.wikimedia.org/wiki/File:Melons_in_Freiburg_-_DSC06501.jpg
Swiss Chard: http://commons.wikimedia.org/wiki/File:SwissChard.jpg
Jackfruit: http://commons.wikimedia.org/wiki/File:Jack_fruit,_the_national_fruit_of_Bangladesh.jpg
Pumpkin: http://commons.wikimedia.org/wiki/File:US_Army_52698_Fall_fun_ripe_for_the_picking.jpg
Watermelons: http://commons.wikimedia.org/wiki/File:Watermelons.jpg

Heather Johnson

Heather Johnson is a mother, wife, writer, librarian, and linguist. She earned a BA in English studies with a minor in creative writing from Illinois State University in May 2007, an MS in library and information science from the University of Illinois at Urbana-Champaign in May 2009, and an MS in English studies with an emphasis in linguistics at Illinois State University in December 2011.

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