31 +5, got to see my boy. Kidney and brain issues.

Dee🤓 • Had my boy Dec. 16th 2015 after having three miscarriages. Now I am pregnant again, after another miscarriage, so hopefully this one sticks. Due October 16th!
We got to see Anthony yesterday. His growth is perfect. Weighing in at 3.3 lbs. Just s few concerns. His right kidney is dilated, but just a tad, which is an improvement from last time when both were really dilated. But this time they found in his brain that he has more spinal fluid than he should. So we have to back to monitor it. If it's not one thing, it's another. Anyone have this issue before? They wanted to do an mri, but I can't lay on my back, so they're waiting until after he's born.