Anatomy scan

Hi mamas.. I went and had my 20 week scan on the 10th. The dr and I have been playing phone tag and we were finally able to connect.

She told me that everything looked great except there was fluid in the kidneys. She indicated this could be a soft marker for Down syndrome, but since I had the genetic testing done and it’s 99.9% accurate, she said it’s most likely not that. She indicated that this is just urine collecting into the baby’s kidneys and isn’t passing into the amniotic fluid like normal, causing a backup. She said each is at about a 0.8 and that anything from 0.4-1.0 they like to do ultrasounds every 4 weeks to keep an eye on it. Obviously if it starts decreasing, I won’t get ultrasounds anymore. Has anyone else had anything like this?