Can You Find Out Sex At The NT U S

10 Replies
ginger6363 - February 15

I have mine at 12 wks, just wondering if I should get my hopes up about finding out the baby's s_x.

 

Kime - February 15

Probably not. I just found out my babies s_x at 19.5 weeks. When i went at 16.5 they told me it was too early and they couldn't tell. They are really a___l about being sure, but that kinda makes me happy b/c the baby is more develpoed and you can tell better, i could clearly see that my baby is a girl!!!! If you try at 12 weeks they could make a big mistake and tell you the wrong gender. they usually can't even tell until 16 weeks and even then it's not a clear judgement on what your having. Hope that helps....

 

Mommy1 - February 15

I went for my 1st ulltrasound at 12w5d and the lady told me she couldn't tell what it was...they can tell I think it's after week 16.

 

ginger6363 - February 15

okay, good to know. I saw some ladies on a different thread talking about how they found at 11-12ish weeks. I thought that seemed early.

 

Allisonc79 - February 16

By 20 weeks it is pretty clear what s_x the baby is. Only baby has to get in the right position to tell. At 12 weeks they might have an idea, but they will tell you they aren't sure because they don't want to make a mistake. So go for it, there was another girl on here that said they told her they saw boy parts at 12 1/2 weeks.

 

Allisonc79 - February 16

You can also do a blood test. Its new but supposedly almost 100 percent accurate and you only need to be 6 weeks. It is fairly costly though, 200.

 

jenshim - February 16

My goodness...YES, you can find out that early at the NT U/S ALL of my friends found out that early. I just found out last week at 12 wks that I'm having a BOY. It is not too early-especially if it's a boy. The tech has to be a good, experienced tech though. It is VERY obvious in the pictures we got that it is a boy. All of my friends that found out that early were all right. Good luck!!

 

lqtoo - February 16

I think 12 weeks is too early - the male genetilia are just starting to develop and it is very easy to confuse girl parts for early developing boy parts. The technician can hazard a guess, but at that point all it will be is a guess.

 

jenshim - February 16

It does not matter the parts. There is an angle they look for. Anything greater than 30 is boy, below is girl. Our tech has never been wrong at 12 weeks. She put an arrow and wrote "BOY". There are several articles out there. Up to 100% certainty at the 12 week point with a tech who knows what he/she is doing. This is something new(er) and in a few years every facility will have the equipment that is better. Also, my U/S was v____al which gave a MUCH clearer picture. The abdominal ones aren't as good this early.

 

jenshim - February 16

Since I can't post URL: On the subject of "early diagnosis of fetal gender", a recent article by B J Whitlow et al, ent_tled "First trimester diagnosis of gender" which appeared in the Journal: Ultrasound in Obstetrics and Gynecology 1999; 13:301–304 addressed this issue. This study addresses the question of first trimester diagnosis of fetal gender by a__sessing the outcome of 447 women who had normal transabdominal ultrasound sometimes complemented with transv____al ultrasound (26%) when the genitals were not clearly visible. Patients were scanned between 11 and 14 weeks and were referred for a__sessment of fetal anatomy. In families with X-linked disorders, fetal gender is determined by chorionic villus sampling (CVS) with 99% accuracy and ultrasound would also need to reach this level of accuracy. The discovery of a female fetus on ultrasound would avoid an invasive test with its risk of miscarriage. Results showed that the overall success rate of gender identification between 12 and 14 weeks was 80% which is less than invasive karyotyping. In the transverse plane, male fetuses showed a dome shaped genital swelling with a cephalic-directed phallus and females had three or four parallel lines representing the labia. The gender of the fetus did not affect the operator’s ability to a__sign gender and when a__signment was possible gender did not affect the accuracy. The ability to a__sign gender increased with increasing gestational age. Another article, Determination of gender - 10 and 14 weeks by Z Efrat et al which appeared in the Journal: Ultrasound in Obstetrics and Gynecology 1999; 13:305–30, reported: The 172 women were all scanned transabdominally. Using a midline sagittal scan with the fetus supine and the spine parallel to the transducer face (sound lines perpendicular) ‘without extension of the spine or limbs’, angles were drawn on an image of the genital area with a line through the genital tubercle and another through the lumbosacral skin line. Male fetuses were characterised by an angle >300 (angle increases with age) and a females by parallel or convergent lines (angle <300). In other words, the phallus was vertical/cranially directed in males and caudally directed in females. At 12 weeks the accuracy of gender a__signment was 98.7% and at 13 weeks the accuracy was 100%. There was incorrect a__signment of males as females in 3% at 12 weeks and no females a__signed as males after 12 weeks. The authors therefore conclude that ‘a final decision on invasive testing for s_x-linked conditions should be undertaken only after 12 weeks of gestation’. The Genital tubercle angle has now been increasingly used as an accurate method for diagnosing fetal gender at around 12-13 weeks during a scan for the Nuchal translucency.

 

TamaraAngel - February 17

Ginger - Whether they technically CAN or CAN'T tell may not matter. I think some places don't allow the tech to give a prediction until a certain point. I had an U/S at 14 weeks and the tech would not even TRY to see gender for me. The NT scan is prob done by a doctor though right? Maybe a doctor would be willing to look for s_x... but don't get your hopes up too high in case they wont look for you. I was disappointed. I did find out though, clear as day, at 17 weeks.

 

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