B Shaped Pregnant Belly - Causes and Clothing Tips

B Shaped Pregnant Belly – Causes and Clothing Tips

A huge part of being pregnant is growing a ‘bump’. Most women see pregnancy bumps as a symbol of happiness,  life and love and look forward to embracing their big bellies during pregnancy. They might also dream about the perfect maternity photos.

However, not every pregnancy belly will look the same. Petite, B-shaped, booming, swinging low, or sitting high, pregnancy bumps come in all sizes and shapes. So many other factors determine the shape of the belly, and no two bumps will ever look the same. Many reasons determine pregnancy belly shapes.  Fitness can also determine the shape of the pregnancy belly. 

Most mothers have a D-shaped belly, while a few might have a pear or a ‘B-shaped’ pregnant belly. While pregnant mothers worry about the health of their babies and their bodies, mothers nowadays are worried about the shape of their bellies and hope to have a traditional D-shaped belly instead of a B-belly. Many pregnant mothers are being abused because of the shape of their belly bumps, something they cannot control! 

Many body-shamers believe that D-bumps are more acceptable and beautiful, and these body-shamers include strangers, friends, and even family! Due to this reason, many mothers, who are plus-size, pregnant, and have a b belly pregnancy, consider dieting while pregnant to change their body shape and even slim when the doctor does not recommend it. But pregnant mothers with a B-shaped belly should remember that no matter what the shape of the belly is, bumps are beautiful, and you should let it be. Weight is not the only factor that causes a B stomach when pregnant! Read on to find out more about a B-shaped pregnant belly!

What Is B-Shaped Pregnant Belly?

Bellies that are B-shaped are like the capital letter ‘B’. It is a B-belly when the middle of your stomach has a waistband so that the belly gets divided between the bottom and the top. B-shaped bellies have two curves instead of just one curve on the belly. A B-shaped belly during pregnancy is mainly seen in plus-size women. And, for plus-sized women, a baby bump can take longer to show. A B-shaped belly is not harmful to the baby or the mother and is just a variation of the usual D-shaped belly.

What Causes the B-Shaped Pregnancy Belly?

If you spend time online researching why this happens, you will find that many mothers are experiencing this. Here are some reasons for a B-shaped pregnant belly:

  • Fascial health has a lot to do with getting a B-shaped belly. The fascial is a band of connective tissue beneath the skin. Fascial health and skin tautness can play an essential role in defining the shape of a person’s silhouette. The skin can change shape and sag over time; some even develop bellies shaped like an apron. A belly apron is a flap of skin that forms a crease or a fold, becoming the middle of the B-shaped belly.

  • The Diastasis Recti can also change the way your stomach looks. Excessive inner-abdominal pressure is a reason for diastasis recti. During pregnancy, your connective tissues and abdominal muscles become very stretched because of your growing uterus. This could make your belly stick out because the space between the right and left stomach muscles would widen. Diastasis recti are very common during pregnancy. For some women, after delivery, the condition may correct itself when the ab muscles regain strength.

  • You will also get a divided stomach if you already have an apron belly, a lower belly area that hangs down.

  • Certain congenital uterine anomalies can cause variations in the shape of the pregnant belly. For example, a bicornuate uterus, a type of uterine malformation characterised by a heart-shaped uterus, can lead to a different abdomen appearance during pregnancy. In this condition, the baby may grow in a way that creates a more elongated or “B-shaped” appearance.

  • Your weight and body shape can also cause a B belly. A woman with a Body Mass Index (BMI) between 25-30 is comparatively heavier at the beginning of her pregnancy and is more likely to have a B-shaped belly. As you know, an obese pregnant woman and her unborn child are at significant risk for numerous major health issues.

Is It Normal to Have a B-Shaped Belly While Pregnant?

Yes! A B-shaped belly is entirely normal during your pregnancy. It is pretty common, so there is nothing to worry about. It is just a slight variation from the traditional D-shaped bellies. Pregnancy bumps come in all sizes, shapes, and colours, and all bumps must be celebrated.

Can a B-Shaped Belly Change to D-Shaped Belly During Pregnancy?

The usual shape of the belly when you are pregnant is one large curve. You can trace the letter ‘D’ around the bump. The curve begins small, becomes larger, and eventually takes over the mother’s body.

B-shaped bellies are like the capital ‘B’ since there would be two curves. Pregnant women plus size are more likely to have a B-belly during pregnancy. When the B-shaped belly becomes D-shaped, some women joke that they are ready to deliver. As the baby grows, it will fill the indentation that forms the letter ‘B’. But there are chances of the woman maintaining her B-shaped belly until she gives birth. Therefore, some women will never get to experience the complete D-belly.

Do Pregnant Women Face a Risk of Having a B-Belly?

Other than the change in the appearance of the stomach, with a b-shaped belly, pregnancy stages will not be affected. It also does not influence the type of birth or the labour you will have. Special care would be needed for women whose lower abdominal area is more extensive when recovering from C-section.

How Can You Avoid B Belly During Pregnancy?

Many people think that a pregnant woman’s belly merely looks like the letter D. The unique belly shape scares many pregnant mothers who worry that there may be foetal problems. This occurs due to the growing uterus and changes in the abdominal muscles. However, there are steps expectant mothers can take to minimise the appearance of a B belly and maintain a more even and rounded belly shape throughout pregnancy. Here are three key points to consider for getting rid of b belly during pregnancy.

1. Exercise and Strengthen Your Core Muscles

Regular exercise under a healthcare professional’s guidance can help strengthen the abdominal muscles and support the growing uterus. Exercises such as prenatal yoga, swimming, and gentle Pilates can help maintain muscle tone and prevent excessive separation of the abdominal muscles, known as diastasis recti. Strengthening your core muscles can contribute to a more balanced belly shape.

2. Maintain a Good Posture

Proper posture can make a significant difference in the appearance of your belly during pregnancy. Aim to keep your shoulders back, chest lifted, and spine aligned. Avoid slouching or arching your back, as these positions can accentuate the B belly shape. Practising good posture can help distribute the weight of the growing uterus more evenly and promote a rounder belly appearance.

3. Wear Supportive Clothing

Choosing the right clothing can help create a smoother silhouette and reduce the visibility of a B belly. Opt for maternity clothing that provides support and gentle compression around the abdomen. Maternity support belts or bands can also help lift the belly and alleviate pressure on the lower back, enhancing the overall belly shape. Wearing high-waisted bottoms or maternity leggings can provide additional coverage and support.

4. Embrace a Body-Positive Mindset

It’s important to remember that every woman’s pregnancy journey is unique, and the appearance of the belly can vary. Embrace your body and the changes it undergoes during this special time. Practising self-love and body positivity can help you feel more confident and comfortable in your skin, regardless of the shape or size of your belly. Remember that the health and well-being of you and your baby are the most important factors during pregnancy.

What Kind of Maternity Clothes Should You Choose If You Have a B-Shaped Pregnancy Belly?

It will be a little challenging to find maternity clothes since any form-fitting dress or top can show the B-belly pregnancy bump. One good way to conceal the B-shape of the belly is by using belly bands. You can combine the belly band with some plus-size baby-doll tops and plus-size maternity dresses. You can also get maternity dresses that are flowy below the bust area. Bella Mama has a good range of maternity tops with extra length to conceal the B-shape. With these maternity clothes, you will surely look pregnant without fearing the B-shaped belly is showing.


1. Does B Belly Go Away After Giving Birth?

Yes, B belly after pregnancy typically resolves on its post-delivery, although the timeline may vary for each individual. After childbirth, the uterus gradually shrinks back to its pre-pregnancy size, and the abdominal muscles regain their tone. The B belly shape typically diminishes over time as the body goes through the postpartum recovery process. Additionally, engaging in postpartum exercises, such as gentle core strengthening exercises and postnatal yoga, can help promote abdominal muscle recovery and restore muscle tone. It’s important to remember that every woman’s postpartum journey is different, and it may take some time for the body to fully recover and regain its pre-pregnancy shape. If you have concerns about your postpartum belly or any changes in your body after giving birth, it’s always a good idea to consult with your doctor.

The most important thing you should remember when you have a B-shaped belly is that it is normal and very beautiful. There are a lot of things pregnant mothers already worry about; therefore, do not add the shape of your belly to that list. Pregnancy is about ensuring you and your baby are healthy and not about staying thin. Your B-shaped belly during pregnancy is natural and something you should embrace instead of trying to change it!


1. Weight Gain During Pregnancy; CDC; https://www.cdc.gov/reproductivehealth/maternalinfanthealth/pregnancy-weight-gain.htm

2. Harper. EA, Rail. G; Contesting “Silhouettes of a Pregnant Belly”: Young Pregnant Women’s Discursive Constructions of the Body; Research gate; https://www.researchgate.net/publication/49609214_Contesting_Silhouettes_of_a_Pregnant_Belly_Young_Pregnant_Women’s_Discursive_Constructions_of_the_Body; January 2011

3. Birth Defects; Cleveland Clinic; https://my.clevelandclinic.org/health/diseases/12230-birth-defects

4. Pregnancy week by week; Mayo Clinic; https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/basics/healthy-pregnancy/hlv-20049471

5. Jesse. ML, Oberg. S, Rosenbergh. J; Treatment Options for Abdominal Rectus Diastasis; PubMed Central; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6877697/; November 2019

Also Read:

Belly Button While Pregnant
Why Do Pregnant Women Rub Their Belly?
Pregnancy Belly Pictures Week by Week

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Ruchelle has a vast experience working with clients in hospitality, health and wellness, entertainment, real estate, and retail. She aims to utilise her learnings to deliver quality content which will in turn help drive sales and customer engagement.