It is possible to predict the sex of a baby, apart from having a doctor’s opinion during an ultrasound. At 20 weeks into the pregnancy, an ultrasound is the most reliable way to tell a baby’s sex.
7 signs of having a girl
We look at the science behind eight traditional signs of having a girl:
- Severe morning sickness
Some people believe that severe morning sickness is a sign of having a girl. A 2017 study found that women carrying girls experienced more inflammation when their immune systems were exposed to bacteria compared to those carrying boys.
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This difference may impact the way women carrying girls experience morning sickness. They may feel more ill than those carrying boys. More research is required to fully understand if there is a connection between morning sickness and the sex of a baby.
- Extreme mood swings
Mood swings can sometimes be caused by hormonal changes during pregnancy. Some people think that women carrying girls have higher levels of estrogen and are more moody, though there’s no scientific evidence to support this theory. Hormone levels rise during pregnancy and fall after giving birth irrespective of whether the baby is male or female.
- Weight gain around the middle
If a woman puts on a lots of weight around her middle during pregnancy, some people think this means she is having a girl. They may also believe that gaining weight just in the front of the body indicates a boy. There’s no research to back this theory, where a woman gains weight in pregnancy may depends on her body type.
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- Carrying the baby high
Though there’s no scientific backup, but some claim carrying the baby high is a sign of having a girl. Where a woman carries her baby depends on her weight gain, fitness level, body type, and muscle strength.
- Sugar cravings
Women often experience strange cravings when pregnant. Some people believe if a woman craves sugary foods, she may be carrying a girl, whereas salty cravings may indicate a boy. There is no scientific evidence to suggest that food cravings during pregnancy can indicate the sex of the baby.
- Stress levels
The stress levels of a woman before she conceives may influence the sex of the baby. A 2012 study discovered a relationship between levels of the stress hormone cortisol and the male to female birth ratio. In this study, women with high levels of cortisol were more likely to have a girl.
- Oily skin and dull hair
Some people believe that having oily skin and dull hair may mean a woman is carrying a girl. This proof is not scientifically based. On the other hand, changes in oil production or hair appearance during pregnancy may relate to hormonal or diet changes.
How doctors test for the baby’s sex
The best way to find out a baby’s sex is when the doctor carries out an ultrasound scan at 20 weeks. The doctor will check the baby’s genitals during the scan to determine their sex. This is usually accurate but not always, as many things can obscure the ultrasound image. There are some other procedures the doctor can perform to get a more conclusive result. They include:
- chorionic villus sampling
- noninvasive prenatal testing