My NIPT gender was wrong
Full disclosure: this is my personal story and not intended to be anecdotal evidence. I still believe that the NIPT is statistically accurate if done correctly, and that I am an anomaly. I just wanted somewhere to share my story to see if anyone else has experienced this as well.
TW: pregnancy loss
In June of 2023, my husband and I got pregnant with our first. Sadly, that pregnancy ended in a missed miscarriage and we had a subsequent D&C in late August 2023.
That December, we got pregnant with our rainbow baby. Being the impatient person that I am, I decided to get a Sneak Peek, which came back as female. We didn’t really have a strong preference, just wanted a health baby…but I wanted to know ASAP because one of the things I grieved with my first is that I’ll never know my first baby’s gender. Maybe silly, but it’s how I felt.
A few weeks later, our NIPT (Natera) results came back. All was low risk, but the gender on our test results was male. We were surprised but equally thrilled. However, my gut told me something was off. We were about to go on vacation and didn’t have time for an ultrasound at my OB’s office (they were booked), so we went to a boutique ultrasound place without telling the tech what happened and she told us based on the scan that we were having a girl. A few weeks later, our anatomy scan also showed the same thing.
At this point, my OB was concerned about a sex differentiation disorder where our baby’s internal reproductive organs didn’t match externally. While there were certainly emotions to process, it was never a question for us personally that as long as our baby would be healthy nothing would change. But we were advised that there are certain SDD’s that can benefit from at-birth intervention, so we went ahead and scheduled an amnio to gather all of the information we could.
In the meantime, I pushed for an additional NIPT from a different company (QNatal) based on my gut feelings. That NIPT came back female with low risk for all other tested factors. My OB and genetic counselors still wanted me to go through with the amnio because different companies have different levels of testing and the amnio test we had scheduled would be the most comprehensive test available.
Long story short, that test also came back as negative for everything tested for with a genetically typical female baby.
We now have an absolutely perfect (all children are perfect and she would have been no matter what) little girl, who is genetically typical. They had given us the option to have my placenta sent off for testing but I declined at the time because I just wanted to put all of that unnecessary stress behind us. But now I’m wondering if I’m alone in this experience.
TL;DR - sneak peak was female, Natera NIPT was male, ultrasounds all female, QNatal female, Variantyx biologically typical female