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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
