The accuracy of the report will depend on many factors, including the age of the baby, the equipment used, the technician, and the baby. An ultrasound performed at 12 weeks is around 80 percent accurate while a scan conducted at 13 weeks may be closer to 94 percent accurate. However, this service costs around £200 … The angle of the dangle will tell you if your baby is a girl or a boy with 99% accuracy. Nub theory, the number one method for gender prediction from as early as 12 weeks. Find out about the "angle of the dangle", and how to get the right ultrasound picture for seeing baby's gender at … According to statistics, 11 weeks may be too early to use the nub theory to predict the baby’s sex. Boy Ultrasound Pictures However, there are certain signs in boy and girl ultrasound pictures that the technician uses to determine the gender of your baby. If you get a private scan, it’s possible to find out what gender your baby is from 10-12 weeks of gestation. The 12 week ultrasound is the first chance to get a peek at your baby’s sex organs and maybe some idea of what gender your baby is – but at 12 weeks… At 12 weeks, we may be able to use ultrasound to determine gender based on the angle of the genital tubercle. Even then some mums argue that your child’s gender isn’t official until your child tells you their gender. If you've been told it's too early to find out baby's gender at a first trimester ultrasound, take a look a the nub theory: it's highly accurate from the 12th week of gestational age. If you’re thinking of trying skull theory to determine your baby’s sex before your 20-week anatomy ultrasound, you’ll need to make sure that you get a very clear image from your 12-week … But lately a growing number of mums-to-be are using these images a whole new way: to try to take an early stab at predicting the gender of their baby. 12 Week Ultrasound Gender Reveal At 12 weeks I went in for my first trimester screening (which helps me to prove that I am low risk which enables me to be eligible for a homebirth) and while I was there I casually mentioned to them that they were able to reveal the sex of the baby for my friend. More recently, many parents are turning to a fun approach to guessing your baby's gender during your first ultrasound as early as 8 weeks along. This is called the Ramzi Method, and it is gaining a lot of popularity among moms-to-be. It is usual that at this time, you will have a sonogram and a full report that will allow the medical staff to identify any potential problems, check on your baby’s development. If you want to know how to tell baby gender from an ultrasound picture, then at anything between 18-20 weeks, this is possible to do. Sure, by around 20 weeks, the foetus is developed enough that a sonogram technician can tell you the sex with a fair amount of confidence (assuming baby is positioned the right way).