The NIPT test is a first trimester screening test that can look for increased risk of Down syndrome and other chromosomal abnormalities. Can we now finally get rid of 'Do they know it's Christmas'? In that theory, the trisomy tests can only be 99.9% accurate surely? Demonstrated by 59 peer-reviewed published studies using the Harmony prenatal test as of January 2019. The gender was reported as >99% accurate. I got my Harmony results on Weds (thankfully low risk for everything) and fetal sex says "Female" which I'm THRILLED about, but so much so, that I'm seriously doubting it's right! so I would personally trust the harmony test over these. However I do remember that it's not 100% accurate, so that must mean that very very rarely it's wrong, from what I remember one explanation was where there had been a previous recent loss or vanishing twin syndrome. And thanks Sparklyuggs that's a much more rational response, and yes of course. Stupidly turned to Google and found several woman who have been told they're having a girl, only to see boy bits at their 20 week scan! I had the harmony test and found out the gender so I hope it's correct or I have a lot of 'boy' clothes! Harmony test gender results : Hello all! Please flag if you think our product match is incorrect. I wish I saved my money! I'm having a hard time with girl names, but picked a boys in a blink! X, But if it were me I would be going crazy and I would pay the £40 to have a gender scan at mother care . Go and get an covid test? The point of the harmony test is not just to test for sex. My understanding is it can only be wrong through two factors a) you do it too early (before 9 weeks) and male DNA does not show up, so you get a false female result- if you are definitly past 9 weeks (which I assume you are being on this board) then that is not a possibility so you're good on that count, Only files 8MB or smaller of the following types are supported: JPEG, PNG, GIF. I had the Harmony test at 13+4, not to find out the sex but because they suspected Down's syndrome. BabyCenter aims to share products and services we hope you’ll find interesting and helpful. Jonathan Schaffir, MD, is an ob-gyn at The Ohio State University Wexner Medical Center. I would have happily waiting until 20 weeks but the half knowing drove me crazy so I had a private gender scan, which confirmed boy. We'll tell you how it works and what results really mean. In that theory, the trisomy tests can only be 99.9% accurate surely?Yes that's what I was told by the hospital - 99.99% or 1 in 10,000 odds of all being fine, but they can't guarantee anything 100%. Headache? Hubby thinks I'm crazy as I want to book an early gender scan now but it's driving me insane! Do not pay for harmony test or count on it for gender reveal!!!! I'd be so devastated now I've been told my angel is having a sister! Get expert guidance from the world's #1 pregnancy and parenting resource, delivered via email, our apps, and website. Get updates on how your baby develops, your body changes, and what you can expect during each week of your pregnancy by signing up to the Mumsnet Pregnancy Newsletters. The twin/recent loss thing is interesting though. Sore throat? The chromosome abnormality tests ranged from 94%-97%. So what if you had g/b twinsWhat /how would DNA show that? Hi, the harmony results I received give a % probability of accuracy. I've done the Chinese prediction calendar, the ring on a strand of hair, the bicarbonate of soda AND the red cabbage test and ALL said boy. People have started buying us things and I'd feel terrible not using x or y's gift because I don't want to put our son in a tutu! So this avo I googled harmony test results accuracy on gender, and there was a number of ladies who had said their tests were contradicted at their 20 week ultrasound. He said that's good cause the gender results aren't as accurate as the 3 chromo results on the Harmony Testing x, So if the top one doesn't apply to you then you have a little girl :) congrats!!!!! Non-invasive prenatal testing (NIPT) is an optional blood test you can do in your first trimester (anytime after week 10) that looks for chromosomal abnormalities in baby, like Down syndrome, trisomy 18 and trisomy 13. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.