Baby Girl Belly vs Baby Boy Belly: 3 Gender Prediction Myths

baby girl belly vs baby boy belly

Pregnancy is a time of joy for women, both physically and emotionally. Baby bumps are fascinating too. Some women believe that the shape of their bellies can predict whether they are having a boy or a girl. Unproven theories suggest that the pregnant belly is different for boys and girls.

Studies show the pregnant belly is not uniform, and the tight abdominal muscles can vary in shape. The size and shape of the belly of a pregnant woman is affected by many factors, including the baby’s size and position, the amount of amniotic fluid in the uterus, the mother’s body type, and her rate of weight gain.

Some women believe that a pregnant belly with a baby girl is rounder, wider, and bigger than that of a baby boy. Due to their smaller size, female infants cause the uterus to expand laterally rather than vertically. Because of how the baby sits in the uterus, some women have lower baby girl bellies than they do for baby boys. Additionally, some women share that the linea nigra runs merely up to the belly button if you have a baby girl belly vs a baby boy belly (in which case, it runs past the belly button towards the ribs).

However, some mothers-to-be claim their pregnant belly shape for boys is more protruding and rounded than those for daughters because of abdominal muscles. Having a boy causes the uterus to grow vertically rather than horizontally because boys are typically larger and longer than girls. Some expectant mothers say their bellies expand like a beach ball, while others compare them to a basketball or watermelon.

The size and shape of the pregnant belly have no bearing on the baby’s sex. The only reliable method of determining a baby’s gender is ultrasound. It is interesting to make assumptions about different pregnancies based on the shape of the woman’s belly.

What’s the Difference Between a Girl Bump and Boy Bump?

The most thrilling aspect of the pregnancy journey is predicting the baby’s sex. There is a widespread misconception that a female pregnancy bump looks different for a baby boy and a baby girl. Despite popular belief, no evidence suggests any difference in the baby bump. Many still think you can tell a baby’s sex by looking at it. Let’s look at the discussion of baby girl belly vs baby boy belly.

  1. A belly is larger for a boy and more dispersed than a girl’s, and a girl’s bump is smaller and more compact as abdominal muscles adjust in pregnancy.
  2. The belly size and placement of the baby influence the appearance of the pregnancy bump.
  3. The location of the baby can also affect the bump. A smaller, more compact baby bump may result from a baby facing the mother’s spine, while a larger, rounder baby bump may result from a baby facing the front.
  4. The size and shape of a baby bump can vary from pregnancy to pregnancy.
  5. The gender of your unborn child cannot be determined in any other way but through an ultrasound or at birth. Gender speculation based on the bump’s appearance is entertaining, but medical testing is necessary.

What Are the Signs of a Baby Boy

Pregnant women get a thrill out of trying to guess what gender their baby will be. You may be interested in knowing what to expect from a boy if you are trying to determine the gender of the baby. Though a few pregnancy myths and old wives’ tales claim to be able to tell you the gender of your unborn child.

Shape of The Baby Bump

The concept of comparing a baby girl belly vs a baby boy belly is never getting old. A rounder high belly is usually a sign of a baby boy belly. Contrary to this, women who carry a low baby bump have a girl.

The Way Of Caring

Old wives’ tales say that the way pregnant women supposedly carry a child at birth can reveal their gender. It’s a boy if you are carrying high and a girl if you carry low. Taller women tend to have more extended midsections than shorter women.


Wanting things like sour foods by a new mom points to the male gender. On the other hand, if you eat lots of sweet foods and fruits is more indicative of having a little girl.

Baby’s Heart Rate

The gender can supposedly be determined by the babys heart rate. The baby girl’s heart rate is higher than 140 beats per minute, and a boy’s if it’s lower than that.

Mood Swings

Some people think that how you feel and how active you are while pregnant can determine the gender of your baby. Mood swings and exhaustion are signs of a female pregnancy.

Linea Nigra

You’ll be having a girl if the linea nigra is a thin dark line that stops at your belly button. If it extends above the belly button, indicating a male gender, then it’s a boy.

Do Girls Move More in Belly or Guys

Tummy movers can tell you a lot about your pregnancy stage. Girls and boys are the same size and have more or less room to move around in the womb. Movements may become constrained as they outgrow the uterus. A pregnant woman may, therefore, become less active as the pregnancy develops.

How the belly moves are also influenced by anatomy. Because most women typically have wider hips, this can influence the baby’s position in the womb. The flexibility of a woman’s belly may be affected. When the baby is anterior to the uterus, the mother may feel more fluttering than when the baby is posterior.

Belly rumbling is also affected by the size and weight of the babies. The lack of space in shorter women makes infants more active. There may be more fetal movement if the baby presses against the mother’s organs. This happens mainly after the first trimester.

When Will I Find Out if I’m Having a Boy or a Girl – For Sure?

When Will I Find Out if I'm Having a Boy or a Girl – For Sure?

Despite popular belief to the contrary, medical testing is the most dependable method.

The answer depends on your circumstances, including your pregnancy stage and your healthcare provider’s policies. The gender of your unborn child can be established in your first ultrasound or genetic testing.

An ultrasound is used to determine a baby’s sex in almost all cases. High-frequency sound waves to visualize the fetus’s genital region is used. After the first trimester of pregnancy, when the baby’s genitalia are typically fully formed and visible, you may be offered your first ultrasound. This scan lets your doctor guess the baby’s gender.

Fetal sex determination via ultrasound is not foolproof. The genital area of the baby may be hidden due to the baby’s position or movement. Due to genital abnormalities, identifying a baby’s gender using ultrasound can be challenging for some. Through genetic testing, you can find out what your unborn child will look like. Both NIPT and CVS are accurate methods for gender identification.

Fetal DNA can be detected in a mother’s blood test through NIPT. Using this method, the sex of a fetus can be determined with high precision as early as week 10. Only women with an extremely high genetic risk should consider NIPT.

The timing of finding out your baby’s gender is something you can discuss with your doctor. Although some parents choose to know their child’s gender before birth, others prefer to wait. If you want to learn more, you and your doctor should discuss your choices and preferences.

3 Gender Prediction Myths

Prediction of a baby’s gender is indicated in old wives’ tales and has been researched for many years. Gender prediction myths have been disseminated through various channels, including cultural traditions. These false beliefs need to be called out for what they are. They aren’t backed by science, so you shouldn’t invest too much time or energy in them.

Myth #1: The shape of the mother’s belly indicates the baby’s gender.

Gender is not always predictable based on the mother’s belly shape. The gender of a baby is not determined by the shape of the baby’s bump. The mother’s belly’s form reflects the developing baby’s position, size, and amniotic fluid. A baby’s gender cannot be determined by this method.

Myth #2: The Chinese Gender Chart can predict a baby’s gender accurately.

According to ancient Chinese horoscopes, a child’s gender can be predicted before birth. It depends on the age of the mother and the month of conception. The chart has a 90% success rate in determining a baby’s gender. Science does not back this up. Many studies have shown that using the Chinese Gender Chart is as reliable as flipping a coin.

Myth #3: Morning sickness indicates a baby’s gender.

Pregnant women often suffer from nausea and vomiting first thing in the morning. The severity is high in the first pregnancy and could reveal the gender of the unborn child. Many people think mild morning sickness indicates it’s a boy and severe morning a girl. This is not true. Nausea in the morning does not reveal the gender of the unborn child. Morning sickness, brought on by pregnancy hormones, affects each woman differently.

Impact of Fetal Gender on Maternal Weight Gain During Pregnancy

​​During pregnancy, a woman’s body undergoes extraordinary changes to accommodate her growing baby. Mothers’ increased weight during pregnancy can benefit them. Did you know that the gender of the unborn baby affects how much weight the mother gains during pregnancy?

Researchers have found that expecting mothers carrying a boy are more likely to put on a higher weight during pregnancy. Fetal gender-related hormonal differences may influence maternal metabolism and food cravings. Evidence suggests that male fetuses have a greater caloric and nutritional requirement from their mothers.

Of course, there are many variables besides fetal gender that can influence gaining weight during pregnancy. The mother’s age, health, and lifestyle choices before pregnancy also play a role. Regardless of the gender of the unborn child, it is recommended and healthy for the mother to gain weight during pregnancy. Make sure you and your unborn child are both healthy by eating right, getting regular exercise, and seeing a doctor.

Do You Gain More Weight With a Boy or Girl?

There’s a common misconception that women’s weight gain during pregnancy depends on the gender of the baby. This idea is completely false. Pregnancy weight gain depends on a woman’s starting size, height, fitness level, and general well-being.

Women who are already overweight may need to lose some weight before becoming pregnant, while those who are underweight may need to gain weight. Women expecting twins, triplets, etc., may need to put on more weight to ensure the health of their growing babies.

The ideal weight gain during pregnancy depends on the mother’s weight before pregnancy. ACOG advises women of a healthy weight to gain between 25 and 35 pounds prior to becoming pregnant. Underweight women should try to gain 28-40 pounds, while those who are overweight should target to gain 15-25 pounds.

Both the mother and the unborn child can be endangered if the mother gains too much or too little weight during pregnancy. It’s been shown that being overweight raises the odds of developing gestational diabetes, hypertension, and having a baby prematurely. However, weight loss can lead to low birth weight and developmental problems.

Final Thoughts

It’s impossible to tell what a baby will be like just by looking at the pregnant woman’s belly. There is no proof that carrying low or carrying high, a round or pointy belly, or certain pregnancy symptoms can accurately predict a baby’s sex.

A fun way to share anecdotes about, but not reliable for, gender identification, a wives’ tale is just that. The only surefire methods of determining a baby’s gender are ultrasounds and genetic testing. Have fun with the speculation, but remember that a pregnant woman’s belly shape has nothing to do with the sex of her unborn child. So, the comparison between the baby girl belly vs baby boy belly is just a fun talk many women like to have.

Stephanie Edenburgh

I'm Steph, a mom to 3 beautiful children and lover all things having to do with my family and being a mom. I've learned a lot raising my own children and working in education and healthcare roles throughout my career. Living in beautiful Southern California I enjoy documenting and writing about all of the hard work us mom's do on a daily basis.

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