How Early Can You Tell the Gender of a Baby on Ultrasound
The Nub Theory tin help yous discover your infant's gender at the 12 calendar week scan, all you need is your first ultrasound picture.
Pregnancy is such an exciting – but tiresome – time! During that first trimester you're excited to know as much nigh your infant as possible; like the gender. Usually yous have to wait until your 18-22 week anatomy scan to be in with a adventure of finding out, simply the Nub Theory is a popular mode for parents-to-be to predict their baby's gender at merely 12 weeks.
Dissimilar other methods that use astrology to predict a baby's gender or old wives tales nearly pregnancy to guess if you lot're conveying a boy or a girl, the Nub Theory uses the 12-week ultrasound scan picture to predict the sexual practice of your babe more accurately.
Similar to the Ramzi Theory, the nub theory says you can tell the sex of your babe at your very first ultrasound. So it'due south popular with those who can't look to find out if they're having a little girl or boy.
Nub Theory: what is information technology?
The Nub Theory is all most something called the genital tubercle, or a 'nub'. All babies have this betwixt their legs and it develops between 11-xiii weeks, turning into a penis in males and a clitoris in females.
The idea is that, if yous tin become a clear view and baby isn't doing fetal gymnastics, y'all tin predict the sex of your babe based on the bending of the nub. According to this theory, the 'angle of the dangle' will point whether a babe is a boy or girl. It'south said that if the nub is over 30 degrees up from the spine, it'southward a boy. However, if it's under that, and so it'south a daughter.
To be able to apply the Nub Theory your baby needs to be in a clear profile position, so the length of their spine is visible.
Nub Theory 12 weeks: boy
Credit: Canva
The nub is at a much steeper angle upwards from the spine, indicating that this could be a baby boy. Now, nosotros're non sure what 30 degrees looks like on an ultrasound. But if you were to draw a straight line on the ultrasound along the bottom half of your baby's spine (almost their bottom) you tin can see whether the nub is pointing conspicuously up and abroad from that line or not.
Nub Theory 12 weeks: girl
Credit: Canva
If you lot compare the angle of your baby's bottom/spine to the angle of the nub, and it sits horizontally in line with the spine or fifty-fifty points downwardly towards information technology, believers would say this shows a piddling girl.
Nub Theory accuracy: what the experts say
The Nub Theory, does what it says on the tin. Information technology's a theory. While it may audio a fiddling wishy-washy, there are studies to back it up. A 2016 study looked at the accuracy of the Nub or 'Pecker' theory and the results were surprisingly authentic. The researchers found that out of 672 cases, sex determination was possible 90 percent of the time. And the baby's gender was correctly predicted 87 percent of the time.
"While the percentages [of those who accurately guess their baby'southward gender using the Nub Theory] may seem pretty high, it'south not every bit easy as it sounds." says Patricia Santiago-Munoz, Yard.D. "There are a number of variables that can affect whether nosotros can decide gender as early every bit 12 weeks."
Credit: Getty Images
Patricia explains that you'll have to hope for co-operation from your babe during the 12-week browse, as getting a good enough photograph to use for the Nub Theory all depends on the angle of the babe:
"First, your baby needs to be in a position for us to go a good photo. That includes non having their legs closed!" If y'all can go a picture of them laying down on their side, that should provide you lot with a good view of the nub. Patricia as well explains that the quality of the ultrasound photo may as well be affected by other factors also.
"A female parent's weight likewise affects our ability to predict gender. The more than body tissue the ultrasound waves must travel through, the fuzzier the images may be. The 2016 written report constitute that a body mass index below 23.viii was the best cutoff value for gender prediction at 11 to 13 weeks. The odds of an accurate prediction fall for women above that number."
Want to give it a go yourself? Hither'southward an easy video on how to do it, all yous demand is your ultrasound photo;
Can the Nub Theory be wrong?
Yep, the Nub Theory can definitely be incorrect. Despite the high percentage of correct gender predictions from the study in 2016.
"At that place'due south a chance that our prediction simply will exist wrong," says Patricia. "We tend to over-predict boys more than often than girls. This can happen, for example, if the baby is developing slowly and the tubercle hasn't begun to indicate upwards or the umbilical cord is mistaken for a penis.
"While gender prediction is much more than accurate during the 20-week ultrasound, there's nevertheless a chance it tin exist incorrect. I recently had a patient who was expecting a boy. She and her husband had a proper name picked out and had painted the nursery for a boy when they found out shortly earlier giving birth that they actually were having a daughter. They were shocked only took the news in stride.
"I want to stress that the main goal of claret tests and ultrasounds during the commencement trimester or early second trimester is non to make up one's mind gender."
"Ultrasounds are used to screen for certain atmospheric condition and bank check whether in that location is something noticeably incorrect with your babe. While we sympathise you may exist eager to acquire the gender, try not to exist upset if your sonographer can't predict it."
In conclusion, the Nub Theory is a fun way to guess your babe's gender after your 12 week scan. Though, probably best to expect until a medical professional has confirmed your babe'south sex. Or until y'all've met your babe in person, before committing to any kind of colour scheme or wardrobe.
Source: https://www.goodto.com/family/babies/nub-theory-predict-your-baby-s-sex-at-12-weeks-79866
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