Problem with my ultrasound.

Destiny
So today my nurse called me to tell me that my 20wk ultrasound showed that my sons left top ventricle in his brain is enlarged and measuring at an 11 while his right is measuring at an 8. She said it can correct itself but they want to monitor it so I have another ultrasound scheduled for the 12th of jan. I did a little research on it but I'm still nervous. I can't seem to have a normal pregnancy :( my first son was born extremely early after my water broke at 23wks and I had many complications to follow trying to stay pregnant after that. But my question is any other mommies had this happen and what was the outcome?