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Sharp Health News

Pregnancy tracker: How big is your baby? (infographic)

March 7, 2017

Ultrasounds are great for showing, in detail, what your baby looks like in utero. But what you don't get from an ultrasound is a real sense of his or her size. From a poppy seed to a pumpkin, this guide uses fruits and veggies to illustrate a baby's size* according to the number of weeks in the womb. Dr. Kim Goodwin, a board-certified OBGYN affiliated with Sharp Mary Birch, shares her thoughts on the magic of watching your unborn baby grow.

*All comparisons are approximate, and baby sizes vary from woman to woman.

Pregnancy tracker: How big is your baby? (infographic) When you’re expecting, 40 weeks seems to take forever. But in your belly, your baby is growing at a rapid pace. Up to 20 weeks, your baby will be measured from head to bottom. After 20 weeks, your baby will be measured from head to heel. Visualize your little one’s size with these fruits and veggie comparisons: At 4 weeks, your baby will be the size of a poppy seed, about 2 millimeters. At 5 weeks, your baby will be the size of a sesame seed, about 3 millimeters. At 6 weeks, your baby will be the size of a lentil, about 5 millimeters. At 7 weeks, your baby will be the size of a blueberry, about 1.2 centimeters. At 8 weeks, your baby will be the size of a kidney bean, about 1.6 centimeters. At 9 weeks, your baby will be the size of a grape, about 2.3 centimeters. At 10 weeks, your baby will be the size of a large olive, about 3.1 centimeters. At 11 weeks, your baby will be the size of a fig, about 4.1 centimeters. At 12 weeks, your baby will be the size of a lime, about 5.4 centimeters. At 13 weeks, your baby will be the size of a pea pod, about 7.4 centimeters. At 14 weeks, your baby will be the size of a lemon, about 8.7 centimeters. At 15 weeks, your baby will be the size of an apple, about 10.1 centimeters. At 16 weeks, your baby will be the size of an avocado, about 11.6 centimeters. At 17 weeks, your baby will be the size of a turnip, about 13 centimeters. At 18 weeks, your baby will be the size of a bell pepper, about 14.2 centimeters. At 19 weeks, your baby will be the size of a tomato, about 15.3 centimeters. At 20 weeks, your baby will be the size of a banana, about 16.4 centimeters. At 21 weeks, your baby will be the size of a carrot, about 26.7 centimeters. At 22 weeks, your baby will be the size of a spaghetti squash, about 27.8 centimeters. At 23 weeks, your baby will be the size of a large mango, about 28.9 centimeters. At 24 weeks, your baby will be the size of an ear of corn, about 30 centimeters. At 25 weeks, your baby will be the size of a rutabaga, about 34.6 centimeters. At 26 weeks, your baby will be the size of a green onion, about 35.6 centimeters. At 27 weeks, your baby will be the size of a head of cauliflower, about 36.6 centimeters. At 28 weeks, your baby will be the size of a large eggplant, about 37.6 centimeters. At 29 weeks, your baby will be the size of a butternut squash, about 38.6 centimeters. At 30 weeks, your baby will be the size of a large cabbage, about 39.9 centimeters. At 31 weeks, your baby will be the size of a coconut, about 41.1 centimeters. At 32 weeks, your baby will be the size of a kale leaf, about 42.4 centimeters. At 33 weeks, your baby will be the size of a pineapple, about 43.7 centimeters. At 34 weeks, your baby will be the size of a cantaloupe, about 45 centimeters. At 35 weeks, your baby will be the size of a honeydew melon, about 46.2 centimeters. At 36 weeks, your baby will be the size of a head of romaine lettuce, about 47.4 centimeters. At 37 weeks, your baby will be the size of a Swiss chard leaf, about 48.6 centimeters. At 38 weeks, your baby will be the size of a leek, about 49.8 centimeters. At 39 weeks, your baby will be the size of a small watermelon, about 50.7 centimeters. At 40 weeks, your baby will be the size of a small pumpkin, about 51.2 centimeters. “Tracking your pregnancy can ease the long wait to meet your baby.,” Says Dr. Kim Goodwin, a board-certified OBGYN affiliated with Sharp Mary Birch Hospital for Women & Newborns. “Various tracking apps and websites help build excitement. But remember, nothing can replace regular prenatal visits with your doctor.” Source: babycenter.com

View the printable version of this infographic.

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