Femia > Health Library > Pregnancy > Pregnancy week by week > Baby fruit size by week: A trimester-by-trimester guide to your growing little one

Baby fruit size by week: A trimester-by-trimester guide to your growing little one

Updated Jan 7, 2025
Published Aug 1, 2024

Created with Nataliia Yermolovych, MD, Obstetrician-Gynecologist

In a nutshell

Your baby’s growth journey spans three trimesters, each with its own milestones. In the first trimester, your baby will grow from a single cell to about the size of a lime while beginning to form the major organs. In the second trimester, you’ll begin to feel your baby’s first movements, as they grow to the size of an eggplant. Finally, in the third trimester, your baby will gain weight rapidly, reaching the size of a pumpkin just before birth.

Experiencing pregnancy and feeling your baby grow and develop inside you is a miraculous experience. So, it’s natural that you’re curious to follow along with exactly what milestones they’re going through at every stage.

Comparing your developing fetus to different fruit sizes is a common and playful way of visualizing their growth throughout your pregnancy. In this article, we’ll share our baby fruit size chart—along with some facts about their physical changes—so you can imagine how your baby is growing week by week.

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First trimester—Baby fruit size by week: From seed to citrus

In the first trimester, the newly fertilized egg will undergo rapid cell division, growing from the size of a poppy seed to a juicy nectarine in just 13 weeks. During this time, development is focused on the formation of the major organ systems.

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Weeks 1–13: Baby size compared to fruit week by week

Week 1-3: Baby is forming
Week 4: Poppy seed
Week 5: Sesame seed
Week 6: Single pea
Week 7: Blueberry
Week 8: Raspberry
Week 9: Single grape
Week 10: Kumquat
Week 11: Fig
Week 12: Lime
Week 13: Peapod

👉 Find out more: First trimester pregnancy diet: 1 to 3-month pregnancy diet chart and meal plans

Second trimester—Baby size by week fruit: Growing and thriving

During the second trimester, your baby’s organs and features become refined, and they’ll grow rapidly in length and weight, reaching the size of a head of cauliflower. At this stage, you’ll start feeling their first movements; meanwhile, unpleasant symptoms like morning sickness usually subside, earning this period the nickname of the “honeymoon phase.”

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Weeks 14–27: Pregnancy fruit chart highlights

Week 14: Lemon
Week 15: Apple
Week 16: Avocado
Week 17: Pear
Week 18: Pepper
Week 19: Mango
Week 20: Banana
Week 21: Carrot
Week 22: Papaya
Week 23: Grapefruit
Week 24: Corn
Week 25: Zucchini
Week 26: Green onion

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Third trimester—Baby fruit size chart: The final stretch

At last, your baby is almost ready to meet you! In this final stage of pregnancy, your baby rapidly gains weight and will reach the size of a pumpkin by the due date. You’ll notice much more prominent movements as they explore their environment (that’s getting a little cramped) with newly developed sight and hearing. Late in the third trimester, you’ll also notice a position shift as your baby gets ready for labor.

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Weeks 28–40: Baby size chart by week finale

Week 27: Cauliflower
Week 28: Eggplant
Week 29: Butternut squash
Week 30: Cabbage
Week 31: Coconut
Week 32: Jicama
Week 33: Pineapple
Week 34: Cantaloupe
Week 35: Honeydew melon
Week 36: Romaine lettuce
Week 37: Swiss chard
Week 38: Leek
Week 39: Watermelon
Week 40: Small pumpkin

And here’s the whole developmental timeline:

The bottom line

Every body and pregnancy is unique, and these week-by-week comparisons are just guidelines to help you visualize what’s happening in your body. It’s normal not to experience every benchmark exactly on time, and usually nothing to worry about. Your healthcare provider can help address any concerns you might have and provide personalized guidance for your pregnancy journey.

References

American College of Obstetricians and Gynecologists. “Pregnancy.” ACOG, 2023, www.acog.org/womens-health/pregnancy.
Mayo Clinic Staff. “Fetal Development: Stages of Growth.” Mayo Clinic, 2022, www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/prenatal-care/art-20045302.
National Health Service. “Your Pregnancy Week by Week.” NHS, 2023, www.nhs.uk/pregnancy/week-by-week/.
Papageorghiou, A. T., et al. “International Standards for Fetal Growth Based on Serial Ultrasound Measurements: The Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project.” The Lancet, vol. 384, no. 9946, 2014, pp. 869-879.
World Health Organization. “Maternal and Perinatal Health.” WHO, 2023, www.who.int/health-topics/maternal-health.

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