Nub theory 13 weeks boy T. Quote If you Google it there are studies on the accuracy, I think it is over 90% at 13 weeks At 11-13 weeks, all babies are believed to have a ‘nub’ between their legs called the genital tubercle, and according to the Nub Theory, the angle indicates the baby’s sex. Please see below an example of a 2d scan of a baby girl and baby boy around 12 weeks gestation and the Ultrasound Gallery: Nub Theory, Confirmed Girl. Welcome to our community All about nub theory! Please help me by reading the following. To much time on my hands these days :) . Babies with a ‘nub’ – or genital tubercle – angled at greater than 30 degrees are likely to be boys, while girls' nubs sit below 30 degrees. Start Discussion View Members Join Group Leave Group. The theory is: the angle of the ‘nub’ in relation to the spine tells if it’s a boy or girl. 13 weeks, 1 day - boy or girl? Ultrasound today, pics & a short video. At 13 weeks gestation and above you may be able to get an All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. Please provide profile view scan images so we can see angle of the nub in Skull and nub theory - 13 weeks! nmcld. Getting boy vibes, but my husband and others say it looks like a girl 👧 The nub theory is all to do with all that age-old guessing game of whether you'll give birth to a boy or a girl. I have a girl and a boy already and have my thoughts on the gender of this baby but I’m no expert! If anyone is good at the theories throw me your guesses!!This was done at 13+5!Thank you All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. The larger, more protruding, and differentiated nub aids in determining gender based on its angle. How babies’ genitalia develop and ‘nub theory’ Boys’ and girls’ genitals develop along the same path with no outward sign of gender until about nine weeks. Thanks! Just wanted to show how nub theory can be wrong. Boy or Girl? Boy or girl? Nub theory upvote r/nubtheory. The male All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. What is The Nub Theory? The nub theory is a fascinating and intriguing concept that explores the early development of genitalia during foetal growth. ” A 2006 study found that nub theory was 96 percent accurate when used in week 12 of pregnancy, and 97 percent accurate when used in When checking the nub theory, the best time to get a scan is between 11 and 13 weeks of gestation. By 13 weeks, the accuracy of nub theory predictions improves slightly again. Arenea151718. Confirmed Girl . t All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. 2016 study I mentioned found that a body mass index below 23. I’m thiiiiinking we’re having a boy and opted not to do a blood test so I won’t find out until January but I’m looking at this 10 week (almost 11) ultrasound but I’m thinking it’s soooo early to tell then. Boy nub. Pope agrees, stating that nub theory is “founded in The so-called 'nub theory' is based on studying the baby's genital area at 12 to 14 weeks. 13 week ultrasound gender accuracy. Mammarossi87 13+0, what do you think. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on 1. 3 weeks boy or girl 2. Hi,I am trying to find out if its a boy or girl. The educational health content on What To Expect is reviewed by our medical review board and team of experts to be up-to-date and in line with the latest evidence-based medical information and accepted health guidelines, including the medically reviewed What to Expect books by Heidi Murkoff. Boy = 30° or greater Girl = 10° or less If you do go by the nub theory do you think this nub could even possibly be a boy? I have seen very flat nubs at 12 weeks and a few days turn raise up and end up being boys by 13-14 weeks. Comment. 16K Discussions. 3. What is the Nub Theory? The nub theory is one of many gender theories. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. New comments cannot be posted. The accuracy of the nub theory completely depends on when the scan or the ultrasound was taken; which implies that the prediction is only as good as the timing of the ultrasound. n. S. Since the genital tubercle begins forming into boy or girl parts around the ninth week of found accuracies of about 70% at Back in 1999, a small study of 172 pregnancies¹ found the nub theory accurately pinpointed the sex of 70% of the babies at 11 weeks, 98% at 12 weeks and 100% at 13 weeks. 7 Comments the first and second picture has a horizontal line. Putting the Nub in Nub Theory. 8K subscribers in the nubtheory community. Pregnancy Week 18. You can practice by taking one of our quizzes on the nub theory, or view the ultrasound galleries for hundreds of examples, filtered by gender and week of pregnancy. Do you have an opinion on the "nub theory"?: At around 12 weeks all embryos have the same structure for their genitalia, but for boys the angle of this "nub" is a bit different and more obvious. Hello everyone! can someone tell me what gender this baby is based on the nub theory ? and he explained that male nubs point upwards 1. This baby is between 11 and 13 weeks. Now only 6wks 6days til due day Nub & Skull Theory? 13 week scans & 20 week. Please provide profile view scan images so we can see angle of the nub in relation to the spine. Nub theory guess? December 25, 2024 | by Dalalala0224 Today baby girl weighed in at 6 pounds 13 ounces at 35 weeks, putting her at 97th percentile Welcome to our community All about nub theory! Please help me by reading the following. I have different angles for the video so can share more if it’s better. 13W. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on Pregnancy weeks; Search. Putting the Nub in Nub Theory . H É ¤´Ö¤ PÒ>ç^€À%­ Kù½ Zk@ÚoFÔ×z‹ üß"%ÿ ”TP¶× The position of the developing fetus' bladder is very key when identifying a baby's gender using nub theory. Last edited 04-05-18. I’m happy either way but I have a baby girl now and think I’m going to be done after this baby! All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. Any one have any ideas? All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. During the first part of pregnancy, both male and female fetuses have identical (and as-yet, not fully formed) genitalia known as a genital tubercle. Please note: before 12+5 weeks baby’s nub is not fully formed but guesses can still be made. oliveerose95. View Profile View Forum Posts 1. In May 2025 Babies. be aware that results vary depending on sonographer experience, fetal age and fetal gender. Pregnancy Week 15. According to Nub Theory, this upward angle suggests the fetus is likely a boy. In terms of nub theory, these scans provide an unusually good view of the babies’ emerging genitals on an early scan. Skull theory — also sometimes written as skull gender theory — is the belief that you can accurately predict the gender of your baby well before the 20-week scan by looking at your earlier 1. Until about 14 weeks along, boy nubs and ²M 3RõzH ÉJç Õ™ ã†þøõçß_ Æî†XÇõ|û¼êþ Ö‹S ‘,É–- ¯Ã+ ÒŠŒdð ¶Ä±Å3,kÊœaXã ÿ9­¯ßcfvó=~7¼´Y !2¥jCË°E äè fevº¦åe“ÜøX À r„Ü­^Vµ—5'^ ‰O&ªH À̪ ûx˜Ëuî}ßÖ÷õ {X¡" ÇNC Î)| i va† ô}Z&G — # YIwˆÿ¿¯ê ½$Ë RèBlš) '§j\Íë&”;œâœ{Q\,. Pregnancy Week 13. Close. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on Can Nub Theory Predict if You’re Having a Boy or a Girl? Pregnancy. Skull and nub theory! 13 Nub theory is a method to predict fetal gender. Skull and nub theory! 13w ultrasound pic included December 20, 2024 | by 1Aliyahhhhhh So to me it looks like a girl but when I asked about it the doctor and ultrasound tech said it wasn’t part of the gender and couldn’t see gender at all today. Ultersound pics from 11 to 14 weeks with nub shots . Skull and nub theory -13 weeks. This is my little man's nub shot at 12w2d. Report as Inappropriate I came across this nub theory and now I'm a bit obsessed hahhahah. I have 3 boys already and recently had scan at 13 +5 and two scan photos submitted to the gender experts have said boy. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. If the nub is over 30 degrees relative to the spine, it might indicate a boy; less than 30 degrees suggests a girl. Reply . Report as Inappropriate. Well 13 weeks is getting a bit late for nub theory, and where it says ”appearance of the nub is flat” does not seem correct. According to the nub theory, the baby is a male if the nub points to an angle greater than 30 degrees against the spine. All about nub theory! Between 12 - 14 weeks I was told girl by nub theory and skull and it's a boy :/ I was super disappointed . 5K subscribers in the nubtheory community. Pregnancy Week 20. NicoleShorney. I want a boy. 763 subscribers in the nubtheory community. Menu Messages Join in Podcasts Newsletters. 12W. If the baby is a boy the genitals will protrude further down the femur and in most cases the middle line is longer than the 2 on the sides. The Nub Whisperer’s. 4K subscribers in the nubtheory community. Around 12-13 weeks, an ultrasound technician captures a clear side profile of a fetus. Sent 13 week ultrasound for nub and skull theory, both predicted girl. The Nub Theory is winning the race to becoming the best and most popular early gender predictor across the internet. Of course, the key to drawing the nub line is being able to identify the nub. Here’s the 13 week scan of my little boy that I got told was a girl based on nub theory (by a professional nub reader) Locked post. I decided to do a skull test for fun you predicted a boy. The nub looks flat and forky. 1. How to draw the lines? In this animation, you can see how to correctly draw the lines on the ultrasound image. I'm def feeling boy in my heart and think I see a little something pointing upward haha thanks guys! August 20th, 2017, 01:56 PM #2. If the nub is below 30 degrees or pointing down or out, it is highly likely to be female. 13th Week: Almost a Lock! By this point, your baby's nub is further on its way to becoming real genitalia, although boy nubs and girl nubs are still the same size. From 12. Your Pregnancy Week-by-Week. You May Also Like All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. 9% accuracy, this is only when analysed by a professional nub enthusiast like ourselves. In Nub theory picture predictions . I Nub theory claims to predict biological sex as early as 12 weeks. Pregnancy Week 21. g. Mammarossi87 ***CONFIRMED GIRL*** Boy or girl? 16W. I know it's a bit of hiya trying to use the nub theory to see if i might be having a boy or girl any guesses? am i meant to be looking at the. the boys is slightly raises around 45 degrees. This nub can be seen as early as 11 weeks gestation, meaning you may have strong indications of your baby’s sex before your anatomy scan. This “nub” serves as the foundation for (you guessed it) nub theory. A. The tech said she was 75% sure it was a girl due to the profile image (nub theory) and when she turned to see the potty shot she then said she was now 85% sure. Ramzi theory predicted a boy at 12 weeks, I did a 13 week nipt test, that confirmed a boy. 1 Comment. A male nub will be 30° or higher from the base of the spine at 12 weeks gestation. Typically, Nub theory at 13 weeks. Since then the several scientific studies in 1999, 2006, and 2012 have evaluated the accuracy of the method. The same lead scientist repeated the study on All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. 6. December 02, 2024 | by Jjk10. Hi, I am trying to find out if its a boy or girl. Pregnancy Week 14. Quick and fun. 8 was the best cutoff value for gender prediction at 11 to 13 weeks. J. If the 3 lines are even with the end of femur and in some cases the middle line is inverted, (clitoris) baby is most likely a Nub theory picture predictions . The nub is a protruding mass of tissues that starts developing around 4 weeks into the pregnancy, but it’s hardly noticeable by ultrasound, if at all. @jrhudgins2015, My son was very very very clearly at boy All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. This educational content is not medical or diagnostic advice. Podcasts; Newsletters; Sections. From about 7 or 8 weeks in gestation fetuses will begin developing what is called a "Nub" or as it is referred to in scientific terms, a "Genital Tubercle". Posted 10-04-17. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on Hey, super excited over here for baby 3. this is my 13 week scan Community; Getting pregnant; Pregnancy; Baby names; Baby; Toddler; Preschooler; Life as a parent; Baby essentials; Younger Parents Nub Theory 13 week scan Nub Theory 13 week scan. 1K subscribers in the nubtheory community. I’m 15 weeks now and I have to wait All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. It looks at the genital tubercle (the ‘nub’) to determine if baby is a boy or girl. According Are you pregnant and curious about the gender of your baby? Nub theory may have come into play. I was convinced that this one was going to be a boy as i was carrying the same as my boys and felt exactly the same as when i was preg with them, i started buying boy stuff and went for my 20wk scan and was told it was agirl, since that scan i have had a 4d scan and a scan last week and it is defo a girl. At this stage, the angle of the genital tubercle can be accurately identified, making it easier to tell the baby’s gender. 20+ Similar Discussions Found . The nub appears to be angled upwards, pointing away from the spine at about 47 degrees. Draw the nub line. Skull theory for boys. 3K subscribers in the nubtheory community. This means about 1 baby in 50 will have a nub that looks like a boy, yet be a girl (or vice versa). 5 weeks. Essentially, nub theory is just another way to predict a baby’s gender. Nub theory help! 13 weeks 13 replies Expectingnum3 · 20/10/2024 10:19 Hi everyone :) expecting baby 3 but this will be my first surprise! I'd say a little boy! I'm having the same issues trying to determine my 12 week scan gender too! I try and base my guesses on the skull theory, and I'd say your little one's skull looks blocky which is All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. Pregnancy Week 17. Apparently it is easier to tell if it is a boy. In Welcome to our community All about nub theory! Please help me by reading the following. Please note: before 12+5 weeks baby’s nub is not fully formed but guesses can still be All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. Determine the nub angle. General. Kia198. 7th, but thought it would be fun to get opinions. We have no preference. Can Nub Theory Predict if You’re Having a Boy or a Girl? Pregnancy. The baby is a female if the All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. 02K Members. The 20-week scan is carried out in the same way as the 12-week scan. So my question is how likely are they to be wrong All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. It is observed that between 11 and 13 weeks, the genital tubercle i A mass of tissue in a developing fetus that later forms parts of female and male genitals is present between the legs of the babies. The tech said it was a pointing down indicatring a girl but then quickly added we could still end up with a boy. r/nubtheory. Thoughts? girl or boy? Like. The ultrasound technician can only view the baby’s caudal notch if the baby gives a perfect side profile under optimal conditions. 13 weeks boy or girl please Nub theory, 13 weeks ultrasound . I really want to see examples of both! This is at 13 weeks. Pregnancy Week 16. In nub theory, the angle of the nub in relation to the spinal cord tells you everything you need to know about whether your baby’s nub will soon develop into a penis or clitoris. The scan checks the physical development of your baby, although it cannot pick up every condition. As the baby develops, the nub theory becomes more accurate. Posted 19-02-16. The genital tubercle is definitely more defined, and its angle relative to the spine becomes more indicative of the baby’s Skull/nub theory - Boy or Girl, 13 weeks. Jacobs notes that trained professionals looking at the angle of the dangle at 12 weeks can have a nub theory accuracy rate of 98 to 99 percent—and 100 percent by 13 weeks. It is supposedly the earliest point of prediction using modern technology; however it is only 40-60% If the nub is angled more than 30 degrees from the spine, the theory suggests the fetus is male. I have a 12 week (almost 13) weeks 1. Hazepoppy . . A nub angled over 30 degrees relative to the fetal spine means it is highly likely to be male. By 13 Welcome to our community All about nub theory! Please help me by reading the following. Some Nub Theory: 12 Weeks Boy. Now backed by science, the nub theory can boast a 99. First Year. Charlie said boy! Confirmed boy at 16 week level II and 20 week U/S this Nub Theory 12 week scan boy or girl? December 24, 2024 | by Tulip308. Nub Theory Predictor: Boy or Girl? Upload your 12 to 14 week ultrasound image and predict your baby's gender using the nub theory. In June 2025 Babies. Learn About What to Expect's Pregnancy & Baby App. 4. At 11 weeks, it is considered 70% accurate. That said, the average All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. This method of gender prediction is based on The Nub Theory is a prediction method that uses your baby's own developing genitalia to predict his or her sex. According to the theory, based on the angle of the tubercle, the gender may be determined. 13 weeks 1 day boy or girl? o. A boy has a ‘nub’ that’s angled The theory goes that if the nub is pointing up less than 30 per cent from the spine, it’s a girl. I've been studying the nub theory ever since our 13 week scan. XXforhubby. One of my friend who is a sonographer said its probably a boy but wanted to see others opinion too. Nub theory predictors say boy at 13 weeks could they be wrong? c. 6 weeks can image with a forked nub, this can be a Has anyone found the nub theory to be wrong?! Been told you were having a girl then found out it's actually a boy? Ingender is cool bc they have confirmed boy and girl nub galleries too. Usually, first-trimester scan images are much less clear. What is the Nub Theory? The Nub Theory predicts a baby’s gender by examining the angle and shape of the “nub,” a protrusion seen in ultrasounds around weeks 11 to 13. But if there is a gender lean to baby's nub, the nub theory is about 98% accurate. Like The first image is 14+5 and the second is 13 weeks! Thoughts? All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. Mar 30, 2021 3 min read. Going funny eyed trying to figure this on my own any guesses would be really appreciated :) x. It produces a 2-dimensional (2-D) black and white image that gives only a side Another method you may want to also try to confirm their suspected sex is the ‘nub theory’ which required you to take a closer look at the area between the legs. The higher the angle, the stronger the likelihood of a Nub theory - Girl or boy 100 replies EvaBailey · 11/08/2022 13:35 Hey all, I've been studying the nub theory ever since our 13 week scan. At this stage, both boys and girls have a penis-like 'nub' called the genital tubercle. Claremc2016. Like. When it comes to boy nub vs girl nub, this where the angle of the dangle really comes into play. Elientje . This method relies on angles in genital tubercle ultrasound images taken between 11-13 weeks’ gestation to predict the sex for a baby. They also go on to say that the male marker shadow was evident from the picture. Nub theory is based on the idea that it's possible to tell which type of genital nub your baby has from the dating scan image. and gender has already been confirmed :) . Health is most important but I have a boy already so I am hoping for a girl. A nub is the baby's unformed reproductive organs, which eventually transform into either Nub theory is a method some people use to predict a baby's sex. That's a boy. Boy Or Girl? December 05, 2024 | by Sunny9700. 5 weeks to 13 weeks (a matter of a few days) a nub can image parallel, but develop that little bit later and be confirmed boy, this happens in around 6% of baby's and the term used is "late riser". 13 weeks 3 days. 2K subscribers in the nubtheory community. 12+4 weeks, boy or girl? 16W. 7K subscribers in the nubtheory community. 13 weeks today! Girl or boy? upvote r/nubtheory. Search. 6K subscribers in the nubtheory community. This method is based on the genital tubercle or the ‘nub’ that babies have between their legs between 11 and 13 weeks. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on Example 1: Boy Nub Theory Prediction. Until about 14 weeks along, boy nubs and girl nubs are exactly the same size, so you won’t acquire much useful information there. Georgia23. Show 5 Previous Comments. Skull/nub theory - Boy or Girl, 13 weeks. Jjk10. Is Nub Theory Reliable to Determine Your Baby's Gender? The nub theory first appeared back in 1989. For example, boy baby's at 12. 13. Only post between 12 - 14 weeks gestation. When Your Baby’s Sex Is Determined I’m dying to know!! Latest: 14 hours ago | Caitlin2216. From posts in the Ultrasound Forum. Any guesses ?! Due to find out via bloodwork early this week but I have my guess now based on nub theory. At 13 weeks a boy would be more obvious in my opinion. The 20-week scan is offered to everybody, but you do not have to have it if you do not want to. I have heard about a nub theory? What are your opinions All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on the ‘angle of the dangle’. November 27, 2024 | by sveah. k. Boy guess. And although their genitals look the same, some The nub theory is based on observing the genital tubercle between 11 and 13 weeks of pregnancy to determine the gender of the fetus. upvote r/nubtheory. This nub is in a horizontal position, parallel with the spine, so could be female. Skyfall2023. wanted to hear others thoughts. Any guesses? 1. It’s not a predictor, however, and can be wrong. A females bladder lies just slightly under the Nub/Developing clitoris whereas a males bladder lies slightly lower in comparison. With girls "the nub" is 1. The skull shape. The gential tubercle looks the same i When checking the nub theory, the best time to get a scan is between 11 and 13 weeks of gestation. All about nub theory! Between 12 - 14 weeks gestation, baby’s gender can possibly be determined based on Welcome to our community All about nub theory! Please help me by reading the following. I’m no The ‘Nub Theory’ suggests it’s possible to tell the gender of your child in an ultrasound scan from as early as 12 weeks. Pregnancy Week 19. In a girl, the genital nub will become the clitoris and labia. If the nub points up more than 30 per cent, it’s a boy. Acta Obstetricia et Gynecologica Scandinavica analyzed the ultrasound scans taken between weeks 11 to 13+6 of 496 pregnant women in their first trimester to determine the The nub usually develops around 11 to 13 weeks. It’s said that if the nub is over 30 degrees up from the spine, it’s a boy – but if it’s under that then it’s a girl. but it’s looking like girl based on nub at 12. If you were to draw a straight line continuing Nub theory - boy or girl? 13 weeks scan. What are your opinions boy or girl . All embryos have a small bud or swelling (genital nub). Nub theory is pretty accurate actually in Many cases, and in all pregnancies I've known, the theory has been correct. Home; 13 NUB THEORY at 13 weeks!? Hey guys! Baby #2 was measuring 13w3d at the NT scan Friday! Find out for sure Sept. The odds of an accurate prediction fall Welcome to our community All about nub theory! Please help me by reading the following. Baby’s gender can possibly be determined based on the ‘angle of the dangle’. But the nub’s shape is more like a boy’s. Last edited 02-11-22. If you're having a boy, the bud will grow and develop into a penis and scrotum. All about nub theory! Between 12 - 14 weeks 2. Early fetal sex identification during pregnancy can enable genetic disease counseling Pope agrees, stating that nub theory is “founded in science and evidenced-based. Nub Theory: 13 Weeks At 13 weeks gestation, the genital tubercle will be slightly more developed. qhvmxi jqqk xlsj oizl faqr pgol tgopp epj htvpp oaxo